Help plz ill give 100 pts after the rest are answered

Aquadratic function f(x) has a turning point at (3,-7). what is the turning point of -f(x)?

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.

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square