Measured in inches, the widths of four quilts are consecutive multiples of three. If the four quilts are placed side by side, their combnied width is 198 inches. What is the width of the widest of the four quilts?

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?

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)

If jobs arrive every 15 seconds on average, what is the probability of waiting more than 30 seconds?