So what we need to do is divide the number of people under 16 by the number of the entire population:

first, let's get rid of the 0s:

now, we can divide:
this is 0.6507....
in order to make this into a percentage, we multiply by 100%:
0.6507*100%=65.07%
the answer is: 65 % (quite a lot!!!)
Opposites:
a. -3
b. 9
c. 5
d. -12
100 minus 72 equals to 28. 28% of NOT getting an exam next week