Answer:
$15.40
Step-by-step explanation:
At a given hourly rate, the pay is proportional to the hours spent earning it. So, we have ...
pay/hours = $17.92/3.2 = (mowing pay) / 2.75
Multiply by 2.75 to get ...
(mowing pay) = $17.92·(2.75/3.2) = $15.40
Hilary earned $15.40 mowing lawns.
