Answer :
Answer:
21
Step-by-step explanation:
Plug in 3 for m in the equation:
n=10x3-9
n=30-9
n=21
N =21
If m =3
You multiply (10x3) = 30
And then n= 30-9
N = 21
If m =3
You multiply (10x3) = 30
And then n= 30-9
N = 21