Avery has $20 to spend on lunch. She buys two tacos for $1.25 each and a large soda for $1.75. How much change should Avery get back from her $20 bill?
o
$17.00
$24.25
$16.25
$15.75

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

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

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?