1 gal of paint in pounds

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?

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?