C ) sum
hope it helped...
sum is summation
1/16=1,003, so
senior= 1003
infants=3009
children=6018
adults=6018
Step-by-step explanation:

Answer:
m = 3, n = -2.
Step-by-step explanation:
Substitute n = 3m - 11 in the second equation:
2m + 3(3m - 11) = 0
2m + 9m - 33 = 0
11m = 33
m = 3.
Substitute for m in n = 3m-11:
n = 3(3) - 11
n = -2.