I need help Please Lol

Answer:
4. C.
5. A.
6.B.
7.WALA IM SO CONFUSED CHECK MO KUNG TYPO BUT.. I THINK IT'S A.
8.A.
Answer:
4. C. 27
5. A. 13
6. B
7. A. 6
diko po alam sagot sa 8 hehe