21. At Seaford Middle School the cafeteria serves ice cream sandwiches every 5 days and serves pizza every 6 days. When will be the next day that they serve both ice cream sandwiches and pizza?

How many zeros does the function f(x)=4x3-x2+1 have

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?