1. David has a collection of computer games. Last year, he had 400 CDs in his collection, and this year he has 125% as many CDs as he had last year. How many CDs does he have now?

Select one:
a. 400
b. 500
c. 425
d. 450

2. David has a collection of computer games. Last year, he had 400 CDs in his collection, and this year he has 120% as many CDs as he had last year. What is the size of his CD collection this year?

Select one:
a. 480 CDs
b. 500 CDs
c. 400 CDs
d. 440 CDs

3. Eric used to practice football for 60 minutes every day. Now, he practices for 150% as many minutes as he used to. How many minutes does he currently practice every day?

Select one:
a. 110
b. 180
c. 90
d. 200

4. Eric used to practice football for 90 minutes every day. Now, he practices 200% as many minutes as he used to. How many minutes does he currently practice every day?

Select one:
a. 180
b. 90
c. 200
d. 100

5. Jane drives at a constant rate of 45 miles per hour for 4 hours. How far will she have traveled in that time?

Select one:
a. 110 miles
b. 220 miles
c. 180 miles
d. 160 miles