6.5 because you add up all your numbers and then divide by the amount of numbers you added
5+0+12+9=26
26/4=6.5
............................
Answer:
33%
Step-by-step explanation:
9 - 6 = 3
3 / 9 = 0.33
0.33 x 100 = 33%
Amount of what you have divided by the total amount of something, times by 100 gives you the percentage
M+n+3+m+n+4
=3m+2n+7
answer
C. 3m+2n+7