I don't understand this

Choose the triangle with x equal to 17.

He expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. if the length is fraction 2 over 3 unit and the width is fraction 1 over 3 unit, what is the perimeter of the rectangle in units? fraction 2 over 3 unit 1 unit 1fraction 2 over 3 units 2 units

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