Question

1. If you bought a book for $12 and a CD for $9 how much money would you get back if you gave the clerk $40?

Answer 1

I would get $19 back if I gave the clerk $40

An equation is an expression used to show the relationship between two or more variables and numbers.

Total money spent on book and CD = $12 + $9 = $21

The money gotten back = $40 - $21 = $19

I would get $19 back if I gave the clerk $40

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