Brooke has set up 70 chairs in equal rows for the class talent show but there is not room for more than 20 rows what are the possible number of rows that brooke could set up .3.

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