Somebody please help

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 sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

How to use order of operation in 20 divide by 4 multiply 5 = 1