I think it will be (6v-1) because its the opposite.
Answer:
X=84
Step-by-step explanation:
180(the sum of the interior triangle angles) - [(180-130)+(180-134)]
The number:

is going to be between the numbers 563 and 564; since 10 squared equals 100 and the decimal point will move to places to the right.
Therefore, the answer is D.
I think it’s the second one
21 over 50 is
21/50.
The same thing, just put 21 on top, a line under it, and below that line, put the 50