Irene R. answered 12/04/19
BS in Mechanical Engineering and Certified math teacher for 13 years
If the regular price is $80, then 10% off would save you $8. Since this problem has the item 40% off, you would save 4 times that amount or $32 ($8 * 4)
You can also find this answer by multiplying $80 by 40% written in decimal form:
0.40 * $80 = $32
You would save $32 (or that would be the amount of the discount).