All you have to do is take the size for every cereal, divide it with its price and you should get your answer as cents. then compare them all and see which one has the lowest price.
* don't forgot to put place holders and add a decimal.
I belive you would subtract 18 from 90????
Step-by-step explanation:
x-25= 6x-5
-5x = 20
x=-4
