Lin needs to save up $20 for a new game. How much money does she have if she has saved 25% of her goal?

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

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 the diagram polygon abcd is a reflection across ef to make polygon a'b'c'd'.