Suppose you roll a number cube. Find p(less than 4)

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls

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

Astudent showed the steps below while solving the inequality |x-4|< 1 by graphing.