Gymnast clothing manufactures expensive hockey jerseys for sale to college bookstores in runs of up to 300. its cost (in dollars) for a run of x hockey jerseys is c(x) = 3000 + 10x + 0.2x2 (0 ≤ x ≤ 300) gymnast clothing sells the jerseys at $100 each. find the revenue function. r(x) = 100x correct: your answer is correct. find the profit function. p(x) = −3000+100x−0.2x2 incorrect: your answer is incorrect. how many should gymnast clothing manufacture to make a profit?

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables