Adonai is ordering cupcakes for his brother’s birthday party. He is able to purchase 12 cupcakes for $15.75. If Adonai is expecting 36 guests at the party, and each guest will get two cupcakes, how much will it cost him to order all of the cupcakes?

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)