What is the value of the expression shown below? 3 over 6 to the power of 2 + 7 × 4 − 5

6 and 1 over 4
6 and 1 over 2
23 and 1 over 4
23 and 1 over 2

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Me n o w. i need t h i s. 10 points

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.