How many of the triple permutations of the set A = {a, b,c, d,e} contain e? did you understand HELP ASAP PLS​

Find the value of a. the diagram is not to scale. a quadrilateral is drawn. the upper and lower sides are parallel. the interior angle in the upper left corner is labeled a degrees. the angle in the upper right corner is labeled 113 degrees. the angle in the lower right corner is labeled b degrees. the angle in the lower left corner is labeled 36 degrees. a. 36 b. 144 c. 54 d. 126

What is the volume of this container?

Describe a situation where it would be beneficial to round decimals to the nearest dollar. explain why you would use rounding in that situation.