Evaluate 11r+2(s-5) for r= 4 and s= -2

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

The area of a rectangle is 54x^9y^8 square yards. if the length of the rectangle is 6x^3y^4 yards, which expression represents the width of the rectangle in yards

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°