Please help!! solomon needs to justify the formula for the arc length of a sector. which expression best completes this argument?
A. 2 pi r / 360/n
B. 2 pi r / 180/n
C. 2 pi r / 270/n
D. 2 pi r / 90/n

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

Acolony contains 1500 bacteria. the population increases at a rate of 115% each hour. if x represents the number of hours elapsed, which function represents the scenario? f(x) = 1500(1.15)" f(x) = 1500(115) f(x) = 1500(2.15) f(x) = 1500(215)