What is the perimeter of the following composite figure? 1. 35.13 yd
2. 21 yd
3. 47.13 yd
4. 42 yd

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.

If i have 20$ and i gave 5$ away how much i got

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.