Which statement about quadrilateral ABCD can be proved to be true? A. Consecutive angles of a parallelogram are congruent.
B. The diagonals of ABCD bisect opposite angles.
C. Consecutive angles of ABCD are supplementary.
D. Diagonals of ABCD are congruent.

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18