Use the slope formula to find the slope of the line passing through these 2 points: (-2, -2) and (4, 1)

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

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

Joanie watched 1 out of three of a movie in the morning