Joanne had $115 to spend at the mall. she spent 23% of that money on a shirt. joanne spent $ on the shirt.

Determine if the equation defines y as a function of x: 2xy = 1. yes o no

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)

What is the surface area of a cube with the volume of 729 ft?