Which equation can be used to solve for in the following diagram? chose 1 answer. A. 5x = (5x + 30)
B. (5x + 30) + 5x = 180
C. (5x + 30) + 5x = 90
D. (5x + 30) - 5x = 90

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.