Which side of the quadrilateral abcd
has a length equal to 10?

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).