A study indicates that the population of a certain town will be growing at the rate of
p' (t) = 5 + 3+²/3
people per month (t = 1 corresponds to January). Use a definite integral to determine by how much the population will increase from April (t = 4) to August (t = 8). Type your answer below rounded to the nearest whole number.
The population will increase by about____people.