Val rented a bicycle while she was on vacation. she paid a flat rental fee of $55.00, plus $8.50 each day. the total cost was $123. write an equation you can use to find the number of days she rented the bicycle

8 days

Step-by-step explanation:

Let the number of days she rented bicycle be "b"

The total cost is fixed cost + variable cost.

Fixed cost = 55

Variables cost = 8.50 each day for b days, that is 8.50b

So, total cost is:

Total Cost = 55 + 8.50b

We know total cost is 123, so we can write:

123 = 55 + 8.50b

Now, we solve for b:

So, she rented the bicycle for 8 days