Aplumber's assistant's rate of pay is $0.75 per cubic foot of earth moved. he moves 220 cubic feet of earth to dig a trench. he moves the same amount to fill the trench. what is his pay for this job?

0.75 per cubic foot of earth move.

Ignore all the words, you multiply 220 by 0.75 twice in order to find out what he is paid.

220 * 0.75 = $165

You are multiplying by 220 again because he moves the same amount to fill the trench.

220 * 0.75 = $165

$165 + $165
=
Your
$330