Doritos are on sale for $3.50 a bag and you have a coupon for $.50 off your purchase. Write a function rule for the cost of in bags of Doritos. How much would 5 bags Doritos cost?
1 bag of doritos is $3.50 and to buy 5 bags you would need to do $3.50 ・ 5 = $17.50 now were gonna do 0.50 x 5 that equals = $2.50 off now subtract 2.50 from 17.50 to get $15.
Your answer is $15, and got 14.285714285714285% off
