(Score for Question 3: ___ of 5 points) You purchase a car using a $20,000 loan with a 5% simple interest rate.
Suppose you pay the loan off after 4 years. How much interest do you pay on your loan? Show your work.
Suppose you pay the loan off after 2 years. How much interest do you save by paying the loan off sooner? Show your work.

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

Which zero pair could be added to the function f(x) = x2 + 12x + 6 so that the function can be written in vertex form? o 3, -3o 6,629,-936, 36

Explain how to graph a scatterplot and its regression line using a regression calculator.