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if f(x)=x^3+x-7 and g(x)=-5x, find (fog)(x) and (gof)(x)
(fog)(x)=?

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?

Does the point (1, sqrt 7) lie on circle shown.

Find the common ratio of the sequence. -4, 8, -16, 32, a: -12b: -2c: 12d: -1/-2