A department store is offering a promotion on candles as shown in the box below. RHonda is buying 3 candles at the same original price for a birthday present.
Buy 2 candles, get 40% off the 3rd candle.
a. The third candle is discounted. Find the percent of the original price Rhonda
would be paying, write an expression to show how you found your answer.
2n + 40% times n

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)