WORTH TWENTY POINTS PLEASE HELP

John makes $10.50 pers hour what expression represens how much he will make if he works h hours

Mr. and mrs. wallace have decided to buy a car for $21,600. they finance $15,000 of it with a 5-year auto loan at 2.9% arp. what will be their monthly payment be? a. $268.20 b. $268.86 c. $269.54 d. $387.16 i need !

Witch represents the inverse of the function f(x)=1/4x-12