Question

10 please let me know if you know

Answer 1

The answer is H. 4
This is because a coefficient is the number next to the variable.
A variable is the letter that represents a quantity. 

Answer 2

Hey there! 

For question 10, you have to find the co-efficient for 4ab.
First, you have to know what a co-efficient is.
Well, a co-efficient is basically a number which multiplies with a variable.
For example, in the equation 6a, 6 is the co-efficient while a is the variable. 

So, in the equation 4ab, the co-efficient is 4. The variable is ab.
The final answer is: H. 4

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