Answer:
Population (p) = 4,000 hundred metric tons
Size of the yield (f(p)) = 8,000 hundred metric tons
Step-by-step explanation:
The population of sardines 'p', for which the derivate of the function f(p) is zero, is the population that gives the maximum sustainable yield:

The size of the maximum sustainable yield is:

Population = 4,000 hundred metric tons
Size of the yield = 8,000 hundred metric tons
9
132 divided by 16 is 8.25 but u still need to sit the remainder so 9
7.6x = 64
7.6/7.6
Therfore, x = 64/7.16
x = 8.938