
Amanda Z. answered 10/05/17
Tutor
5
(5)
Master the Fundamentals of Science and Math
a) Take 60% of $80 and add it to the cost of the dress
80 (.60) = 48
80 + 48 = $128
b) Do this part in two steps. First find and subtract 40% of $128
128 (.40) = 51.2
128 - 51.2 = $76.80
Next find and subtract 10% of $76.80
76.80 (.10) = 7.68
76.80 - 7.68 = $69.12