Alise decides on her 25th birthday to begin saving for her retirement. At the end of each year, she deposits $2200.00 into an investment that pays 9% compounded annually. Determine the amount of money she will have when she is 50 years old. Worth 5 marks

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³

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