ASAP Jenny rented a bike from a bike shop. The bike shop charged a fixed rental fee for the bike. They charged an additional fee for each hour the bike was rented. The expression below shows the charges Jenny paid for the bike when she returned it after h hours.

30+2h what does the coefficient of the expression represent?

The fixed rental fee for the bike.
The additional per hour rental fee.
The total hours she rented the bike.
The total she paid to rent the bike.