Answer:
f(a) = 2a² + 4a + 5
Step-by-step explanation:
Answer: 7.50 in paper and 35 in ink.
Step-by-step explanation:
1. The combined volume of all the tanks at the aquarium is written in Scientific notation. Keeping this on mind, you can write it as following:

2. Now, you must sum the combined volume of all the tanks and the volume of the new tank to calculate the total volume of all of them:
3. Now, you can write the result in Scientific notation, as following:

The answer is: 
Answer:
-4.3375796178343949044585987261146
Step-by-step explanation:
you can probably round it off but that is what my calculator gave me.
Answer:
X^2+3X-10
Step-x^2by-step explanation: