The answer would be 45 weeks, since you do 530-80 since that is the part the parents will foot, which will be 450 left. Then you do that divided by 10 since you plan to save 10 dollars a week and therefore are left with 45 weeks.
I think it is C but it also could be B as well
The answer would be A. There is a phase shift to the left. Because you are adding pi/6.
Answer: C
Step-by-step explanation:
