Please help me out on this, there doesn't have to be a step by step just make sure the answers are right, please(also it has to be in degrees)!

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 quadratic function h(t)=-16.1t^2+150 choose the graph representation

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.