Lynn has two jobs. she earns $7.50 per hour as the hostess for a restaurant and earns $10 per hour babysitting for a neighbor. part 1 which inequality represents the number of hours working as a hostess, h, and the number of hours babysitting, b, that lynn needs in order to earn at least $150 in one week? helllppp ! (again)

Which equation represents the function on the graph?

If a || b and e || f , what if the value of y ?

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)