Nine friends share 3 pumpkin pies equally. what fraction of a pumpkin pie does each friend get?

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

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?

Find the distance between (7,-6) and (-3,-9)