Question

Terry earned $90 plus 10% of his sales for a net of $159. How much were his sales?

$690
$820
$525
$875

Answer 1

First, subtract 90 from his total

159 - 90 = 69

Next, divide the remainder with 10%

Note that 10% = 0.10

69/0.10 = 690

$690 is your answer

hope this helps