Answer:
1.) 75 miles in 3 hours; 140 miles in 4 hours (no)
2.) 12 gallons in 4 minutes; 21 gallons in 7 minutes (yes)
3.) 150 steps in 50 feet; 72 steps in 24 feet (yes)
4.) 3 rotations in 675 days; 2 rotations in 730 days (no)
Explanation:
when in fraction form you cross multiply
12/4=21/7
21*4=12*7
84=84
150/50=72/24
150*24= 50*72
3,600=3,600