Answer:
$54
Explanation:
1. $90 is the original price subtract 40% change 40% to a number .40 multiply .40 by 90. .40X90 = .3600 move the decimal over the 2 tenths. $36. Is the 40% being taken off. $90 - $36 = $54.
OR
2. $90 is the original price. 100% - 40% = 60% that you will pay. Change 60% into a number .60 multiply .60X90 = .5400 move the decimal point over the 2 tenths and you will pay $54.