Simplify the following expressions. 1. 3( x - 5 ) + 2x - 3

2. 4a - 3 ( 4 - a )

3. -2 ( b - 6 ) + 2

4. 6 - 3 ( 3 + 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.

Write the expression 7x^3-28xy^2 as the product of 3 factors

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?