Determine whether the product given by the expression -3a is always, sometimes, or never a negative value. Explain. how expressions can be used to find the...

Determine whether the product given by the expression -3a is always, sometimes, or never a negative value. Explain. how expressions can be used to find the perimeter of a baseball diamond. Include two different verbal expressions and an algebraic expression other than 4s to represent the perimeter of a square.