Helppp plsnshshshshshh

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?

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)