Write an situation for this equation and solve it. x-125=600

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.

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Complete the steps to find 4.830 ÷ 5