Asystem that takes in resources from its external environment and converts them into goods and services that are then sent back to that environment for purchase by customers is a(n) system.

Open System

Explanation:

According to my research on different types of system structures, I can say that based on the information provided within the question the type of system being described is called an Open System. This system (like mentioned in the question) can be defined as a system that interacts with it's environment, which results in changes for the system as well as the environment.

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c is the answer, and do you have a ps4?

there's 11 people for the 1st position. then, no matter who gets it, there's only 10 left for the second, and then 9 left for the third. 11 x 10 x 9 = 990.   the answer is there are 990 different ways the positions can be filled by these applicants