I’m my opinion I thick it could be A
Answer:
-30
Step-by-step explanation:
i am not sure just remember getting taught it.
Answer:

Step-by-step explanation:
Given

Required
Determine the expression for s
The speed is calculated as:

Substitute S for speed

Let the number of books be b and the time be m.
The expression becomes

Hence, the expression for the scenario is:

Answer:
how am I supposed to help?
Step-by-step explanation:
Your question is a statement.