Can u do this for me?

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

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Answer pls man im trying to get out of summer school