Sense this would be known to be a 'prism', we would them do the following key point:

Therefore, we would then multiply to following numbers which would be above.
Question #2.The reason to why we would us 'square units' to answer in a area format would be because by doing so, it would then describe the surface of the area. And by knowing what you are measuring something by would be a whole lot easier.
Y=19x+19b
To solve for b you first need to subtract 19x from both sides giving you:
y-19x=19b
Then, divide by 19 on both sides to get
(y/19)-x=b
So b=(y/19)-x
Hope this helps!!! Follow me :)
Answer:
Answer is B The stone age came after the Paleolithic period
Step-by-step explanation: