What is the solution to the equation x+7=−12?

is the question
hurry plss

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?

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

Im literally having a mental breakdown