With number 6 and 7! extra points and

6) None of these
A gives you x^2 +2x - 35
B gives you x^2 +8x - 48
C gives you x^2 - 14x + 49
D gives you x^2 - 2x - 48

so none of these

7 im not so sure sorry

7)

If there are four friends then each would get, 1.25 or 1 1/4. so this is how i solved 5 ÷ 4 = 1.25 . hope this ; )