What is équivalent to -2(-x+5y)+3(2x-6y)

Triangle abc is reflected over the line y=x triangle abc has points (-6,-,-1) and (-5,-6) what is the c coordinate

One positive number is 9 more than twice another. if their product is 95, find the numbers

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?