Reposting this question because of the bots sending links

Empty box + box + empty box fill in the box is equal to 30 how

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm