Curb Side Taxi charges a flat rate of $2.25 plus $0.50 per mile. -You charges a flat rate of $1.25 plus $0.75 per mile Nicole has no more than y dollars to spend on a tax rideWhich system of inequalities can be used to determine the better deal? Let represent the number of miles

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)