Pls help me I don't understand this. I will mark you as brainliest... the first one who answers

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

True or false? a circle could be circumscribed about the quadrilateral below.

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