A. How many pounds of rice per dollar.
The given rate for pound of rice per dollar is
7 pounds per 4 dollar.
Divide the rate by 4
7÷4 pounds per 4÷4 dollar
1.75 pounds per 1 dollar
The rate therefore is 1.75 pounds per dollar.
B. How many miles per minute.
The given rate is 6 miles per 42 minutes.
Divide it by 42.
6 miles per 42 minutes
6÷42 miles per 42÷42 minutes
0.14 miles per 1 minute
The rate therefore is 0.14 miles per minute.