Answer:

Step-by-step explanation:

Answer: 9
Step-by-step explanation:
To square a number, you multiply it by itself twice.
In this case, your answer would be 3 x 3 = 9.
Hope it helps! :)
Answer:
1?
Step-by-step explanation:
I think its one...
It's up to you what you chose for A and or B because 0 slope of a line is for a flat horizontal line and an undefined slope is for a flat vertical line
With this information you should chose D regardless but that's also up to you I would though and E is correct.