A box of 12 popsicles cost 4.44 how much does it cost per popsicles

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

The radius of a sphere is 3 inches. which represents the volume of the sphere?