What is the simplified form of (x+5)/(3x+4) + (x+4)/(x+3) a. (2x+9)/(4x+7) b. (4x^2+24x+31)/(3x^2+13x+12) c. (4x^2+24x+31)/(4x+7) d. (2x+9)/(3x^2+13x+12)

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.