Find the missing angle

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.

How does reflecting or rotating a figure change the interior angles of the figure?

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?