Could someone explain how they got this answer this is annoying me

Question

asked Mar 6, 2019 224k views

1 Answer

Bobbaluba · Answer 1 · 2019-03-10T06:25:51+0000

$43

calculate
(3)/(4) of his earnings by multiplying $172 by 3 and dividing the result by 4

spent = (3 × $172 ) ÷ 4 = $129

now subtract this from earnings to calculate deposit

deposit = $172 - $129 = $43