<h3><u>given</u><u>:</u></h3>
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<h3><u>solution</u><u>:</u></h3>
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Answer 9x^2
Step-by-step explanation:
3x^2+6x^2=9x^2
The answer to the first question
is 2 1/4.
The answer to the second question is 8 sqroot 3. Hope I was able to help
C. Plumber A and Plumber B will both charge $135 if they each work 2.5 h.