Can anybody help me with this question
Show that 4x + 4 = 28

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

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.

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x