What is the slope of the line through (-1,-7) and (3,9)?

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

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

What is the length and width of a 84.5 square foot rug? will mark