i don't know how to solve the following:

3(x+2y)+$(3x+y)

arlene house of beauty offer a package of three facial for $48 each. your best friend hear that you plan to purchase the package from arlene and offers todothe work on you herself she wants you to buy any supplies needed and pay her $12 per hour for her time. the supplies you need cost $84 and it will take your friend 1 hour 15 minutes to administter ech treatment who should you choose to pay less and how much less will you pay? show how you arrivedat your solution