Which equation will solve the following word problem? bob spends an average of $66.42 per week at the grocery store. he spent $62.84 last week, and $71.02 this week. how much did bob spend two weeks ago?

($66.42 +$62.84 + $71.02)/3 = s

s + $62.84 + $71.02/2 = $66.42

$66.42 +$62.84 + $71.02/3 = s

(s + $62.84 + $71.02)/3 = $66.42

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