Four students are sitting in the first row. in the second row, 4 students sit behind each of those students, and so on. after the fourth row is filled, one student leaves from each row. in the fifth row, 2 students sit behind each student in the fourth row. how many students are sitting in the fifth row?

➷ If 1 student leaves each row, there are now 3 students in each row.

2 x 3 = 6

There are 6 students in the fifth row

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c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.