Answer:
Micaela rented the bike for 5 hours.
Step-by-step explanation:
Micaela paid $36 to rent a bike in Natasha's Bikes, where they charge a fixed fee of $16 plus $4 per hour.
We need to find the number of hours Micaela rented the bike.
From the $36 she paid, $16 was used to pay the fixed fee. Thus, the difference $36-$16=$20 was used to pay for the hours of rent.
Since the rate per hour is $4, then the number of hours is $20/$4 = 5 hours.
Micaela rented the bike for 5 hours.
