Do you know it is 1157 divided by 9

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.

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

Asix-sided number cube is rolled twice. what is the probability that the first roll is an even numbe and the second roll is a number greater than 4?