Edward had 32 songs on his mp3 player. if he deleted 12 songs what is the ratio of songs he kept to songs he deleted

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

Match the one-to-one functions with the graphs of their inverse functions.

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)