Esther the Clown does face painting at the city carnival. She paints 7 faces every 21 minutes and spends the same amount of time painting each face. Write an equation that relates f, the number of faces she paints, and m, the time she spends painting in minutes.

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

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