The World Future Society predicts that by the year 2020, airplanes will be able
to carry 1400 passengers. Today's biggest jets can carry 600 passengers. What
will the percent of increase be for passenger airplanes?

2

10

As soon as a new car is purchased and driven away from the dealership, it begins
to lose its value, or depreciate. Katy bought a 2010 Kia Sportage for $9559. One
year later, the value of the car was $8500. What is the percent of decrease of
the value of the car?

3

10

A sporting goods store sells basketballs for $22. They paid $8 for each
basketball from their supplier. What is the percent of increase for the price of
each basketball?

4

10

An electronics store buys video games at an original cost of $25 and sells them
for $50 each. What is the percent of increase for the price of the video games?

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