The grocery store is having a sale on cereal. A box of cereal normally costs $4.56. Today, it is on sale for 25% off. If you buy 4 boxes of cereal, how much money will you have to pay at the register? There is no sales tax on the cereal.

13.68

Step-by-step explanation:

if you do 4.56*4 you get 18.24 and 18.24 minus 25 percents is 13.68

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

step-by-step explanation:

ok one would be money, and the other would be refreshments or something similar. if each bag of popcorn is 5.00 and each drink is half of that that means drinks are 2.50 the proper way to do that would to look and see how much of each you can buy without exceeding a limit of 30.00