Enter an algebraic expression to model the given context. Give your answer in simplest form. The original price p of an item less a discount of 60%.

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Are the corresponding angles congruent? explain why or why not.