Fill in the blank with the phrase that makes the proof statement true.

Lines A and B are parallel. _ because they form a linear pair.

A. Angle 1 is supplementary to angle 2
B. Angle 1 is congruent to angle 3
C. Angle 3 is supplementary to angle 2
D. Angle 2 is congruent to angle 3

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

Which of the following statement about pascal's triangle are true?

Is the square root of 4 plus the square root of 16 rational?