Unit 3 Test Form B - Retake
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by Christine Godfrey
| 21 Questions
Note from the author:
Ready Math - Expression and Equations
a
1
c
d
2
f
3
h
4
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1
1
What is the constant in the following expression?

A
B
C
D
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A company sells speakers for \$23 each. At the end of the week, they have sold \$851 worth of speakers. How many speakers did they sell? Write and solve an equation to find the answer.
2
1
Write an equation to represent the situation. Use the variable x.
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3
1
The company sold _____ speakers.
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4
2.5
If each equation below was solved for x, for which equation is x = 6 the solution?
Choose all that apply.
A
B
C
D
E
a
b
c
5
e
6
g
7
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Donna opens a savings account with an initial balance of \$50. She then deposits \$25 each month. Use an equation, a table and a graph to explain the relationship between the amount of money in the account, a, and the number of months since Donna opened the account, m.
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5
1
Part A)
Use the equation a=25m+50 to explain how the value of a changes as m increases.

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6
3
Part B)
Make a table to show the relationship between m and a. Find at least 5 ordered pairs. Given the equation a = 25m + 50.
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7
4.5
Use your table from Part B to draw a graph to represent the situation.
a
8
c
d
e
9
g
10
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8
1
Which value makes the equation 4x - 5 = 43 true?
A
B
C
D
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# Brandon wants to practice his trombone for at least 5.5 hours this week.

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9
1
Part A
Write an inequality to represent the number of hours Brandon will spend practicing this week. Use the variable x.
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10
3
Part B
Graph the solution to your inequality from Part A on the number line below.
a
11
c
d
12
13
14
15
16
j
17
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11
2.5
Which expression is equivalent to 45x - 15x?
Choose all that apply.
A
B
C
D
E
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Consider the possible solution to each inequality. Choose Yes or No for each question.
12
0.5
Is 8.3 a solution of

Yes
No
13
0.5
Is 6.5 a solution of

Yes
No
14
0.5
IS 7 a solution of

Yes
No
15
0.5
Is 17 a solution of

Yes
No
16
0.5
Is 6 a solution of

Yes
No
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17
2
Evaluate:

a
b
c
18
e
19
g
20
i
21
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Jen accidently knocks a square framed poster off the wall, breaking the protective glass piece. The glass piece has side length x and she needs to buy a new piece of glass to replace the it.
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18
1
Part A
Write a variable expression for the area of the glass piece Jen needs to replace.
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19
1
Part B
If the protective glass piece is 25 inches wide, what is the area of the glass piece Jen needs to replace?
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20
1
Part C
If Jen has a budget of \$150, what is the most she can pay per square inch of glass to replace the glass piece described in Part B?
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21
1
Explain your answer to #20. (Use mathematical reasoning.)

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