The sum of two numbers is 21. their difference is 7. what are the numbers?

Which number line represents the solution set for the inequality -1/2x> 24?

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.

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.