Answer:
The two friends need a total $32.50.
Explanation:
Julio wants to rent bikes for himself and a friend for 5 hours.
one bike rental costs per hour = $3.50
2 bikes rental costs per hour = $3.50 × 2 = $7.00
2 bikes rental costs for one hour = $7.00
2 bikes rental costs for 5 hours = $7.00 × 5 = $32.50
The two friends need a total of $32.50 to rent bikes for 5 hours.
Julio has $40.00.
Therefore Julio get back = 40.00 - 32.50 = $7.50
$7.50 change will be get back.