Angie has 1/7 of a cake ! bobbie has 2/7 . carl has the rest . what fraction of a cake does carl have ?
is the answer 4/7 ? im not sure

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