Answer:
wheres the picture?
Step-by-step explanation:
So firstly, you want to foil - (7v^4 + 6) [Think of the minus sign as -1]:
Next, combine like terms and your answer will be:
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 :)