Final answer:
To represent the garbage production of Tola, we use the function notation f(50) = 12. The statement f(7) = 5 means a city with 7,000 people produces 5 tons of garbage weekly.
Step-by-step explanation:
The amount of garbage, G, produced by a city with population p is given by G = f(p). To express the information of the town of Tola, which has a population of 50,000 and produces 12 tons of garbage each week, in terms of the function f, we would write f(50) = 12 since population p is measured in thousands and no units are included in the function notation.
For the statement f(7) = 5, it means that the amount of garbage produced per week by a city with population 7,000 is 5 tons. The argument of function f, which is 7, represents thousands of people, hence the population is 7,000.