Answer:
Step-by-step explanation:
The slope is 4/3 because rise over run (if u have heard of that expression)
Just cross multiply basically divide
Simple,
using the Pythagorean Theorem...

You have the hypotenuse (C) and one of the legs (A)
So, plug in what you know...

144+

=400
Now,isolate


-144 -144
Leaving you with...

So, now,

, to find what b is..
b=16
Thus, your answer.
Answer:
3
Step-by-step explanation:
A coefficient is a numerical factor that contains a variable.
In this case, 3 is a numerical factor and contains a variable (y).
Hence,
3 is the coefficient of the expression.