Solve for x
A rectangle, the area is 84.
One side is 12, what is x ?

7

Step-by-step explanation:

area = l * w

we know one side is 12, and area = 84, so

84 = 12x

divide by 12

x = 7

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)