Answer:
I think so. Just check your work backwards. Plug in x for 5 and see if you come to an answer that you know is 100% correct.
Hope that helps!
Answer:
Yes, if the arrow on the left means the interval goes to -∞
It would be D...
not quite sure, cause most of these are not a function
Answer:
B
Step-by-step explanation:
-The balanced chemical reaction of oxygen and water is written as:

-You notice that 2 moles of hydrogen gas reacts with one mole of oxygen gas to form 2 moles of water
-Hence, the correct choice is B
How many times Kevin's savings are al's savings is 30 more