Gina wants to ride the waves at flagship Pier in Galveston so she she rents a surfboard for $5 and hour plus an initial or beginning payment of $20 for how many hours can Gina rent a surfboard if she has $90

Initial payment is $20

Each hour for rented surfboard is $5

She has an initial sum of $90

90-20 (the initial payment) is $70

Now we divide the remaining 70 to 5 (which is the hourly rate)

70/5=14 hours

Answer: with $90 she can rent the surf board for 14 hours straight after she paid the $20 initial payment.