Respuesta :
Answer: Crystal would earn $20.625 by working 3 hours and 45 minutes.
Step-by-step explanation:
Since we have given that
Cost per hour for mowing lawns = $5.50
Let h be the number of hours.
Let the amount of money be 'm'.
So, the equation would be
[tex]m=5.50h[/tex]
If number of hours = 3 hours 45 minutes = [tex]3\dfrac{45}{60}=3\dfrac{3}{4}=\dfrac{15}{4}[/tex]
So, Amount of money earned by Crystal would be
[tex]m=5.50\times \dfrac{15}{4}\\\\m=\$20.625[/tex]
Hence, Crystal would earn $20.625 by working 3 hours and 45 minutes.