At Bob’s Bakery, each slice of pecan pie costs $6. At Carrie’s Cupcakes and More. Each slice of pecan pie costs $2 less than Bob’s Bakery’s pie. Using input-output tables below, find out how much it would cost to purchase 9 slices of pecan pie from Carrie’s Cupcakes and More Tip: find the rule for the second table by first finding what once slice of pie would cost. (please help me)