GIVING BRAIN TO CORRECT ANSWER!! Find the value of x

A. 5

B. 40

C. 20

D. 45​

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Factor the polynomial. b^2 + 4b + 4

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.