Answer:
1/20
there are 20 students altogether
Step-by-step explanation:
um I'm not sure
Answer:
70
Step-by-step explanation:
70 combinations of four books can be made from eight different books.
Answer:
5y
Step-by-step explanation:
10
Answer:
No
Step-by-step explanation:
Answer:
both the equations are identities
Step-by-step explanation: