A circular fountain has a radius of 9.4 feet. Find its diameter and circumference to the nearest tenth. Please Help.

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

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

Fast! find the length of cu. the triangles are similar. show your work.