Adele is 5 years older than timothy. in three years, timothy will be 2/3 of adele’s age. what is adele’s current age?

Can some one explain this i got sent this. is this a threat i’m scared

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

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)