Answer: $16
r=remainder
s=spent
r'=final remainder
160
160-(160 x .20) = r OR 160 x .80 = r
160-32 = r = 128 = 160 x .80 =
Then , 7/8 is lost so:
128 - (7/8 x 128) :
7/8=.875
128-(.875 x 128)
Using PEMDAS:
128-(112):
128-112= $16
1.6m questions
2.0m answers