Calculus! i need ?
water is poured into a bucket according to the rate f(t)=(t+7)/(2+t), and at the same time empties out through a hole in the bottom at the rate e(t)=(ln(t+4))/(t+2), with both f(t) and e(t) measured in pints per minute. how much water, to the nearest pint is in the bucket at time t=5 minutes.

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

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

Jose is going to use a random number generator 500500 times. each time he uses it, he will get a 1, 2, 3,1,2,3, or 44.