Help me pleasee

What is 32+4 x (16 x 1/2) -2 show your work}

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.