Rachel has a coupon for 15% off her total lunch bill before tax. if t. represents the total cost of her lunch items before tax, which of these expressions represents the saving from the coupon?

For this case we have the following variable:

The total discount percentage is 15%.

For this you must write the amount that is saved by the coupon.

We have then:

Rewriting the expression we have:

The expression that represents the saving of the coupon is:

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.