Answer:
$37.80
Step-by-step explanation:
40% + 10%=50%
$75.60 x 50% = $37.80
$75.60 - $37.80 = $37.80
the factor is this problem is
7(9 - 5)
20
(90+70)-(80+60)=20
just minus the total selling price to the total cost price
225cm.....................
