If my math is right, not even a full day since it’s 2 2/3 and they use 8
The

row is filled by just plugging in the corresponding values of

and

into the ODE.
For example, when

and

, you have

and so on.
Answer:
30.06
Step-by-step explanation:
The question states WHAT DID THEY PAY BEFORE INSTALATION CHARGES.
So 30.06$
588.34-555.28=30.06
Each question is worth 4 points (100/25=4)
Therefore, when you divide 83 by 4, you get 20.75, as as he's aiming to get a B, this needs to be rounded up to 21.
Xio would need to get 21 questions right to get a B, hope this helps :)