The pta created a cross country trail for the meet. the pta placed a trail marker in the ground every four hundred years. every nine hundred years the pta set up a water station. what is the shortest distance a runner will have to run to see both a water station and trail marker at the same location?

What ia the sum if the first 7 terms of the geometric series

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)

Ineed with 8,9 and 10 love ya guysss