Find the volume of this composite figure

Which graph of a hyperbola represents the equation 16x^2-y^2=16

Or a class trip a teacher brought 25 students tickets and 5 adult tickets: ~ write an expression for the total cost of tickets purchased ~if students tickets cost $4 each and adult tickets cost $6 each, how much money did the teacher spend on tickets?

Prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using parallelogram method one midpoint formula