4/10 + 1/2 please help-

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

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is