I'M IN A TEST HELP PLS​

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

Multiply. write your answer in simplest form. 3/8 x 5/7

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1