Plz help me it’s a test .no file plz

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

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.