Which expression could represent the length of the pasture and fence?

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x

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

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?