Answer:
$128.49
Explanation:
Tim is painting his storage shed who buys 4 gallons of white paint and 3 gallons of blue paint. This means, of each gallon of white paint cost $15.72 and each gallon of blue paint is $21.87, $128.49 is standing on paint.
4 gallons x $15.72(per gallon) = $62.88
3 gallons x $15.72(per gallon) = $65.61
Now you add the totals together:
$62.88 + 65.61 = $128.49
Therefore, $128.49 is the answer.