What is the unit rate for $9.60 for 4 pounds

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.