HELP ILL MARK YOU BRAINLIST

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?

What is the value of x in the following equation? -3x-2=2x+8

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.