Find the sum of all positive rational numbers that are less than 5, and that has a denominator of 30 when written in lowest terms. plz answer asap.

The diagram shows corresponding lengths in two similar figures. find the area of the smaller figure. a. 14.4 yd2 b. 24 yd2 c. 26.4 yd2 d. 28

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)

Quiz 3: volume of solidsnates wrapping a present the gift is a night rectangular prism with a base measuring 15 inches by 12 inches and a height of 8 inches what is the surface area of the git?