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To simplify this, you would have to turn b^-2 into a positive exponent.
To do this, we have to flip b^-2, which would get rid of the negate from the exponent: -2
3a^4 b^-2 c^3 / b^-2
Then we get the answer:
3a^4 c^3
------------
b^-2
I have a picture to clarify!
I hope this helped, let me know if you don't understand! ^.^
It could be 30 to 31 but February has 28 expected from a leap year with 29 days
Answer: 385 cm
Step-by-step explanation: V= l*w*h
V= 7*5*11
= 385