1.) At a local grocery store, 2 pineapples cost $2.78. How many do 5 pineapples cost ?
A. $6.95
B. $7.95
C. $8.95
D. $9.95
2.) E is inversely proportional to F. If E=32 when F=4, then find the value of E when F=8.
A. 12
B. 16
C. 24
D. 48
3.) For 400 students in a dorm, the food lasts for 25 days. 100 more students moved into the dorm. For how many days will the food last ?
A. 15 days
B. 20 days
C. 22 days
D. 24 days
4.) It took 3 men 36 hours to construct a fence around a small garden. Working at the same rate, how many hours would be saved if one more man is hired for the same job?
A. 36
B. 27
C. 12
D. 9
5.) The variables x and y vary inversely. Use the given values to write an equivalent relating x and y. Then find y when x=2. If x=5, y=-2.
A. -4/5
B. 4/5
C. 5/4
D. -5