Which number is represented by 6,000 + 800 + 70 + 1 + 0.3 + 0.05:Options: 6,081.035
6,870.305
687.35
6,871.35
By the way those are decimal points. for math 5th grade math.

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?

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)