What is 1+1 please guys help me due in one second cmon guys im begging you this is so hard and if i dont get it my mom gonna spank me plz guysz

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Can some one me with these questions