On a​ team, 4 girls and 2 boys scored a total of points. The difference between the number of points scored by the 4 girls and the number of points scored by the 2 boys is . Each girl scored the same number of points and each boy scored the same number of points. Find the number of points scored by each girl and each boy.

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.

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)