Please help!! I will give correct answer brainelest! 15 points!

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.

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Are the corresponding angles congruent? explain why or why not.