The difference will be

.
Remember that parentheses are needed for the second polynomial because the negative is distributed to all of its terms.
Step-by-step explanation:
This is the correct answer.
Even according to calculator and working.
So not quite sure why those options are incorrect?
Answer:
what set of numbers??
you haven't provided any set of numbers
125 > 50 + 4.25*p
subtract 50 from each side
75 =>4.25p
divide by 4.25
p>17.64
He may invite up to 17 people ( if he doesn't have to pay for himself)
He may invite 16 if he has to pay for himself
Answer:
2
Step-by-step explanation:
23/8 As a mixed number is 2 7/8
As a decimal, 2.875