Question 134063
A. What is 25% of $15?  (15*.25) = $3.75. The 5 dollar coupon saves her $5, and the 25% off saves 3.75. use the 5 off coupon

B. What price will yield the same savings?
{{{5 = x * .25}}}
20 = x.

The price break point is 20. Anything less than 20, use the $5 off. Anything more than $20, use the 25% off. At 20, it doesn't matter