If my friend gives me $1 to buy candy how much would i pay her back?

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

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?