Billy and 4 friends go to breakfast at a local diner. They ordered an egg sandwich for $9, a waffle for $10.50, and three omelettes for $12 each. If they decide to split the bill evenly and left a 20% tip, how much did each person pay?

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2