Complete this statement: 30x^4a^2+18x^2a^3=6x^2a^2

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

Pick the description of a geometric object that best matches the real world object box for a deck of card

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?