An item that regularly sells for $350 is marked down to $262.50. What is the discount rate?

7x+8y=-18, 4x-9y=-3 solve the system of equations

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

In the diagram below, tan θ = sqrt 3. what is the value of m?