As a fundraiser for her softball team, Jayme must raise at least $150 by selling cookie dough and popcorn. Each tub of cookie dough costs $6. Each bag of popcorn costs $10. She must sell more than 20 items total.

Choose the correct system of linear inequalities that represents Jayme's situation.

Let x = cookie dough

Let y = popcorn

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)