The number of visitors to a small pumpkin patch that opened in 2003 increased each year as shown in the table. set up and solve an equation(s) to predict the number of visitors in 2020, assuming the increase continues at this same rate y=b(1+r)^t year 2003 2004 2005 2006 2007 2008 visitors 500 515 530 546 563 580

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)