Identify the like terms.

9x, 10y, -9y, 10

a. 9x and -9y

b. 10 y and 10

c. 10y and -9y

d. 9 x and 10

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.