Good evening.
We want:

The function is <em>not continuous</em> in 3, and f(3) = 7, but, as we approach to 3 from right, we are always in
f(x) = 3.
We can approach to indefinitely close to x = 3 from right, and the function will be always in 3. Therefore, we conclude that:
Answer:
Identity Property
Step-by-step explanation:
Cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
Answer:
rate of change: 0.3 || the number of marbles is increasing with height of water.
Step-by-step explanation:
<u><em>to find rate of change</em></u><em> </em>: 
: 
: 
: 
Answer:
2k - 6
Step-by-step explanation:
Distribute:
2k - 18 + 12
Add:
2k - 6