A certain lottery has 39 numbers. In how many different ways can 6 of the numbers be selected?

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?

Subject: geometryneed with 6 and 7

The graph shows the amount of total rainfall at each hour what was the total rainfall amount after three hours