M+n+3+m+n+4
=3m+2n+7
answer
C. 3m+2n+7
Answer:

Step-by-step explanation:
The distance between points
and
is

Hence, the distance between points
and
is

Answer:
is that middle school or what
Answer:
c
Step-by-step explanation:
X=15
Since 20/4 is 5 and 5•3 is 15