When solving a system of equations by elimination, what should always be your first step?

Aresearch company wants to test the claim that a new multivitamin to improve short term memory. state the objective of the experiment, suggest a population, determine the experimental and control groups, and describe a sample procedure.

The radius of a sphere is 3 inches. which represents the volume of the sphere?

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points