Which expressions are equivalent to (2 Superscript 5 Baseline) Superscript negative 2?

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.

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle