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

Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction

Maddie's rectangular kitchen has an area of 10 square yards and a length of 3 3/4 yards.how many yards wide is maddie's kitchen?