1. A
2. B
3. C
4. A
5. D
k mik nha bn
= 96, 55
= 6h15
k mik nhs bn
A nha bn
5. either
6.so
7. neither
8. so
k mik nha b
3/4-5/7=-21/28-20/28=-41/28
k mik nha bn
uh.....................