John is a furniture maker. the graph shows the number of chairs john makes and the time it takes to make that many chairs. how many hours will it take for john to make 30 chairs? a. between 1 and 2 hours b. between 2 and 3 hours c. between 3 and 4 hours d. between 4 and 5 hours

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

Match each inequality to the number line that represents its solution

Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)