PLEASE HELP Special Right Triangles and Pythagorean Theorem
1. Find the length of the missing side. Leave your answer in the simplest radical form.
please show work

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.

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents