PLEASE HELP! but pleassseee don't answer if you just want the points I'll report you. It's really simple I'm just REALLY not smart

Answer:
A) 15x+9x
B) you have to graph
C)yes, all she wants to do is make 90 bucks she can totally do more if she wants
D) you can choose
Step-by-step explanation:
15*12 & 9*12