Which is the more reasonable measurement of the diameter of a human hair? 1.8x 10^-2 mm or 1.8x 10^2 mm

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

The volume of a cube is 8 in to the 3rd power. how long is each side?

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.