Which phrase is a description of the expression 15-7n true

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 function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog