Marnie walsh purchased a delux dictionary for 38.75 and a full color atlas for 41.10. the state sales tax is 6%, tge city tax is 2.5%and the country tax is 1%. what is the total purchase price ?

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