A clothing store is offering 40% off of any sale merchandise. Chester's subtotal is $128.00. What is his total after the discount?

76.8

Step-by-step explanation:

(The rate is usually given as a percent.).

To find the discount, multiply the rate by the original price.

To find the sale price, subtract the discount from the original price.

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step-by-step explanation:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb