Aspinner is divided into 8 equal sections number 1 to 8. if the arrow is spun once, what is the probability it will land on a number less than 8?
a.1/8
b.1/4
c.3/4
d.3/8

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

The equation of line wx is y=2x-5. write an equation of a line perpendicular to line wx in slopeintercept form the contains points (-1,-2)

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?