Sarawong and joe each improved their yards by planting rose bushes and shrubs. they bought their supplies from the same store. sarawong spent $161 on 14 rose bushes and 9 shrubs. joe spent $77 on 7 rose bushes and 4 shrubs. find the cost of one rose bush and the cost of one shrub

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

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.