Increase 12 1/2cm by 25mm

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

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !