Nicole used 3/8 of her ribbon ti wrap a present. if she used 6 feet of ribbon for the present how much ribbon did nicole have at first?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

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