Explain! Prizes! Thank you !

$16

Step-by-step explanation:

20/5 = 4

4 x 4 = 16

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Work Shown:

5 notebooks = 20 dollars

5/5 notebooks = 20/5 dollars divide both sides by 5

1 notebook = 4 dollars unit rate

4*(1 notebook) = 4*(4 dollars) multiply both sides by 4

4 notebooks = 16 dollars

Another approach:

(5 notebooks)/(20 dollars) = (4 notebooks)/(x dollars)

5/20 = 4/x

5*x = 20*4 ... cross multiply

5x = 80

5x/5 = 80/5 dividing both sides by 5

x = 16

So 4 notebooks cost $16

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.