An ordered pair is a solution to a system of linear equations in two variables if and only if a. it satisfies the first (top) equation in the system b. it satisfies the second (bottom) equation in the system c. it satisfies at least one of the two equations in the system d. it satisfies both of the equations in the system

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.