Answer:
The second option.
Step-by-step explanation:
I did this quiz before, here is an explaination.
You add 0 to 81.3 and it becomes 81.30, then you're able to subtract it from 6.45, you subtract from left to right to find the answer with regrouping!
Answer:
Correct choice is A
Step-by-step explanation:
Note that the denominator
Then rewrite the numerator
as 
Substitute both expression into the initial expression:

Answer:
z ≤ 17
Step-by-step explanation:
Step 1: Subtract 37 from both sides.
Answer:
its the first table
Step-by-step explanation: