Answer:
3(3a - 6b + 7c )
Step-by-step explanation:
The greatest common factor of 9, 18 and 21 is 3
Factor out 3 from each term
9a - 18b + 21c
= 3(3a - 6b + 7c) ← in factored form
Answer:
The answer is "0.081"
Step-by-step explanation:
Dimes
Calculating total coins
P(for a dime) 
Calculating remaining coins
Nickels 
P(for nickel draw in second)
P(for a dime after that a nickel, without replacement)
Answer:

Step-by-step explanation:



Answer:
the slope I think is -6/1. because a slope is rise(-6) over run(1). negative because the line goes down
Answer:
The answer in the procedure
Step-by-step explanation:
we know that

In this problem we have

Remember that


substitute

