Blake uses red beads and white beads to make key chains. He wants to know how many white beads he needs when he uses 21 red beads. Blake thinks he needs 70 white beads because
3 x 7 = 21 and 10 x 7 = 70.
Number of
Red Beads
Number of
White Beads
Is Blake correct? Explain.

Determine the relationship of ab and cd given the following points

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

Explain how you divide powers with like bases.discuss why the bases have to be the same.how are these rules similar to the rules for multiplying powers with like bases.