13, because 442/34 is 13 meaning each person sold an equal amount
6,782 is the nearest root.
The nearest integer would be 7.
I really hope this helped you! c:
Answer is in a photo. I couldn't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

-0.5 and 2 the difference is 2.5. 2.5 times 4 equals 10. 2 and -8 the difference is 10. 10 times 4 equals 40. -8 and 32 the difference is 40
Use FOIL
<span>(1-p)(1+p+p^2+p^3+p^4+p^5+p^6)
</span><span>1+p+p^2+p^3+p^4+p^5+p^6 -1p - p^2 - p^3 - p^4 - p^5 - p^6
</span><span>1 + p -1p <------------------Answer</span>