Kelly tells you that when variables are in the denominator, the equation becomes unsolvable. "there is a value for x that makes the denominator zero, and you can't divide by zero," kelly explains. using complete sentences, demonstrate to kelly how the equation is still solvable.

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

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

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?