Me with these 3 problems

1 ) 6,789 ÷ 15
2 ) 2108 ÷ 12
3 ) matty has 47,504 bottles that are packed equally into 18 boxes for shipment . how many bottles will be in each box? how many will not fit into it?

: )

Iwill give you ! what is the measure of ∠v ?

Will give a: 122 b: 90 c: 48 d: 180

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)