HELP PLZ! I NEED TO GET 80% AND HIGHER! will mark brainliest. plz be right im failing this class.

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.

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