Answer:
3 1/2 hours
Step-by-step explanation:
84/24 = 3.5
It would be: -2/3 * -9/10 = 18/30 = 3/5
So, option B is your answer.
Hope this helps!
I am bad at Common Core (I was good before, but not anymore) so I am saying none of the above
2x^3+2x^2+5x-7, That would be the answer.
For this case we have the following fusions:

We must find 
By definition:

The domain of the function will be given by all the values for which the function is defined, that is, all real numbers except zero.
Answer:
(-∞, 0) U (0,∞)