Answer:
I got B) 72 cm^3
Step-by-step explanation:
cube area= 4
rectangle area= 18
4*18= 72
The <span>expression that represents n plus 7 multiplied by 3 is
(n + 7)(3)
The entire expression, (n + 7) is multiplied by 3 since it would be inconvenient to state the expression as given above if what is meant was
(n + 7x3). It would have simply been n plus 21.</span>
In elementary algebra, a trinomial is a polynomial consisting of three terms or monomials.
