A 12-oz box of cereal costs $4.86. What is the unit rate per ounce?

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

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

Factor 15x^3 - 5x^2 +6x-2 by grouping. what is the resulting expression