Add. Your answer should be an expanded polynomial in standard form. (d^2+6d+9) +(d^3+6d+9)=

d^3 + d^2 + 12d + 18

Step-by-step explanation:

(d^2 + 6d + 9) + (d^3 + 6d + 9) =

First, step is to drop the parentheses since they are not needed.

= d^2 + 6d + 9 + d^3 + 6d + 9

Now, like terms together.

= d^3 + d^2 + 6d + 6d + 9 + 9

Add like terms.

= d^3 + d^2 + 12d + 18

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.

answer: you need to organize this better it does not make sense.

step-by-step explanation: ?