The sum of the measures of the exterior angle of an n-gon is

Can someone answer this question? : )

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

Solve for x. −3/4(x+2)=6 enter your answer in the box