April has 40 cookies to make for upcoming bake sale. she made 3/5 of the cookies chocolate chip and 1/4 of them peanut butter. how many chocolate chip and peanut butter cookies are there in all

Proving the parallelogram diagonal theoremgiven abcd is a parralelogam, diagnals ac and bd intersect at eprove ae is conruent to ce and be is congruent to de

Apack of gum would be considered a(n) necessity luxury item small ticket item unaccountable expense

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)