Wonderful.
You've given us ' m '.
Now, if we only had ' a ', we could come back at you with ' f '.
6 and 
Explanation:
The expression:
6a - 
A coefficient is a numerical constant usually placed before a variable in an expression.
They are used to multiply variables.
Given equation is;

There are two variables in this expression which are;
a and - b

The coefficients in this expression are:
6 and 
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Quadratic equation brainly.com/question/1357167
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43.75N (assuming only friction)
Answer:
Renewable energy sources can come again, but nonrenewable is gone forever. For example, coal and gasoline are both nonrenewable.
Explanation: