Answer:
(a) is False (b) is true (c) is true
Step-by-step explanation:
Hey You!
The integer would be: -25, because Mr. Williams was below sea level, and not above, so the integer that would represent this situation would be a negative integer.
That's Your Answer! ^^

The multiple zero is x = -4.
The multiplicity is 2 because there are two values of x.
Answer:
Equation 1
In the story it said Eli's mom doubled the money he left, that is what the two represents. 10 is the original amount he had. -k is the money he lost.
Equation 2
20 is the the result of the original 10 being multiplied. -2k, now the 2 is still the amount that the mom doubled his amount by, and the k is how much money Eli lost.
Hope this helps!!