Martin needs 3.25 gallons of red paint for his small barn and 1.25 gallons of paint for his shed. he spends $81 on paint. how much does the paint cost per gallon? $18.00 $24.54 $27.00 $40.50

First Option is correct.

Step-by-step explanation:

Since we have given that

Number of gallons of red paint for his small barn is needed = 3.25

Number of gallons of paint for his shed = 1.25

Total number of gallons is given by

Total amount he spent on paint = $81

So, Cost per gallon is given by

So, Cost per gallon = $18

Hence, First Option is correct.