Aculture is grown with a population of 45 million cells. the cell population is found to double every hour. what will the population be after four hours?

4+6x-3x^3 in standard form with explanations because i don’t understand

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

How do you write y-10=2 (x-8) in standard form