During a sale, a store offered a 35% discount on a bed that originally sold for $820. After the sale, the discounted price of the bed was marked up by 35%. What was the price of the bed after the markup? Round to the nearest cent.

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)