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:
i believe u add all of them up
Step-by-step explanation:
Assuming they mean the fraction is 24/30 the answer is 0.8 (24÷30 is the equation to use)
Answer:
4/7
Step-by-step explanation:
if you add the 3 and the 1 it makes 4, since the denominators are the same you don't add them you keep them the same
Answer: (3x^7-5x^5+10x^3-4x^2+1)÷(x^2-18)= 5x^1÷-9