Final answer:
The mathematics question, which is at the middle school level, seeks to find the number of students Mr. Holland is serving with 39 pizzas. Additional information on the ratio of pizzas to students is needed to provide an answer. Without this data, we cannot solve the question.
Step-by-step explanation:
The subject of the question is Mathematics, specifically dealing with proportions or ratios. Unfortunately, the question about Mr. Holland's band class ordering 39 pizzas and the number of students he is serving is incomplete, as it lacks the necessary information about the amount of pizzas per student or total number of students in other classes to determine the answer. Therefore, we cannot solve this particular problem without additional data.
However, generally, if one knows the amount of pizza each student receives, such as one pizza per three students, and the total number of pizzas, they can calculate the number of students by setting up a proportion. For example, if the ratio of pizzas to students was known to be 1 pizza for every 3 students, the calculation would be as follows:
Number of pizzas (given): 39
Ratio (hypothetical example): 1 pizza per 3 students
Using the ratio, you can multiply the number of students (which in this ratio is 3) by the number of pizzas to find the total number of students:
39 pizzas * 3 students/pizza = 117 students
In this hypothetical example, Mr. Holland would be serving 117 students.