Mark went to two stores to buy a shirt, pants, and shoes. he wants to know which store has the better deal. ( item: shirts $23.89,pants $15.67,shoes $9.99 john's store) ( item: shirts $21.35,pants $12.45,shoes $12.99 sam's store) these are the questions: a. which store has the better deal? prove it. b. if mark has 3 twenty dollars bills ,what would the change be form the store that had the better deal? c. if mark bough 2 pants for m the store that had the better deal, what would his total cost be?