What is 2 4/13 + 7 5/20

What is coefficient of the term of degree of degree 5 in the polynomial below

Evaluate the expression. (9 + 5)(3 + 2)0

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