How many triangles exist with the given side lengths 3in 4in 2in

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

The volume of a cube is 8 in to the 3rd power. how long is each side?

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.