8. Which of the following statements is true? Select all that apply.
61,640 + 1,111 = 62,751
62,561 – 17,638 = 80,199
15,020 + 8,604 = 23,660
12,314 - 9,103 = 3,211
22,222 - 11,111 = 11,111

Find the difference (8ab+a+2) - (3ab+6)

What percent of the circle below is shaded?

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.