Find f(-3) f(x) = 4x+7

Option 1: $30 an hour plus a nonrefundable deposit of $50 option 2: $20 an hour plus a nonrefundable deposit of $75 kyle is renting a jetski for the day. if he can rent the jetski in one hour increments, what is the minimum number of hours must he rent the jetski for option 2 to be a better deal then option 1?

Im literally having a mental breakdown

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x