Answer:
Step-by-step explanation:

Um, I'd say discrete because it's not important. I'd never say it's continuous.
-9T means -9 x T
So if T is equivalent to 4,
you should do:
-9 x 4 = -36
J= -36
Please be a little more specific on what you want to ask.
I can be of some help.
1345/99 = 13.585858
14
Rounding is easy, just look at the number in the tenths place. If the number is less than 5 round down and if the number is greater than or equal to 5 round up.