Based on the given information, determine which sides of quadrilateral ABCD must be parallel. mZA = 56°, mZB = 124°, mZC = 124°, mZD= 56°
A.
AB || DC
B. AD || BC
C. AB || DC and AD || BC
D. None of the sides must be parallel.

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?

What is the measure of angle tvu shown in the diagram below

Sections of prefabricated woods are each 5 1/3 feet long, how long are 7 1/2 sections placed end to end?