Please help me 100 points if you help

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

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?