Please help me please please please

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

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

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180