Afertilizer covers 3 4 square foot in 1 2 hour. the unit rate is square feet per hour.

square foot per hour

Step-by-step explanation:

The total area covered = 34 square foot

Time taken = 12 hours

This implies that it takes 12 hours to cover 34 square foot.

Using proportionality,

12 hours ---------------------------------------> 34 square foot

Dividing both sides by 12

--------------------------->

1 hour ---------------------------------------> square foot per hour

The unit rate in square feet per hour is square foot per hour

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24