7. Find the remainder when the number 20172017... 2017 (2017 written 100 times) is divided by 8.
Answer: 1

8. MN and $\mathrm{PQ}$ are two parallel chords located on opposite sides of the center of a circle with radius $10 . \mathrm{MN}=12, \mathrm{PQ}=16$. Find the distance between the chords.

Answer: 14