A. -2 is the correct answer for the rate of change
For this case we must find an expression equivalent to:

We look for the factors of 10 and 30:
10: 1,2,5,10
30: 1,2,3,5,6,10,15,30
The greatest common factor of both numbers is 10.
Then, we can rewrite the expression as:

Answer:

Answer:
14
Step-by-step explanation:
Since gaining fourteen pounds means going in a positive direction, we can say the gain of fourteen pounds numerically as 14.
Answer:
b is right
Step-by-step explanation: