Answer:
−9
Step-by-step explanation:

Sry i suck in math brother
Your answer would be: <em>693.</em>
Explanation:
When finding the area in a problem use <em>L×W×H</em>.
That being said, you now have to multiply the <em>L×W×H</em> (7x9x11)
7 × 9 × 11 = <em>693</em>
So the answer would be <em>693</em> because, if you are finding an area you use <em>L×W×H</em> to find your area.
This is the transitive property :)
Aos= -b/2a so plunin your numbers and you'll get the AOS so you can find the vertex