100 points pls halp isaac is purchasing two pairs of shoes—one pair for $37.00 and the second pair for $42.00. the state sales tax applied to isaac’s bill is 7%. how much is isaac’s total bill? show your work. answered 84.53 if isaac uses a coupon entitling him to a 25% discount off the purchase price before tax, how much will his bill be? assume that a 7% sales tax is applied to the discounted price. using words, explain how you found the discounted price. answered 63.4 the shoe store’s clerks are paid on commission. if the clerk receives a 12% commission on total purchase amounts before tax is applied, how much would the commission be for isaac’s purchase with and without a coupon? not answered pls