PLS HELP ASAP what is the equation for the line of symmetry for the function below?

y-1=-2(x+3)^2

A. x=3
B. x=-2
C. x=-3
D. y=7

I THINK ITS C BUT IM NOT SURE

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?

Hannah paid $3.20 for 16 ounces of potato chips. hank paid $3.23 for 17 ounces of potato chips. who paid less per ounces?