Coach Jenson bought 15 shirts for $180 for the basketball team. The unit rate for shorts was $1.50 less than the unit rate for shirts. Coach Jenson bought the same number of shorts as shirts to complete each uniform. What was the total cost of the uniforms for the team? *

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)