Ihave no idk how to do this someone

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

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.

What are the greatest common factor of 75 and 30