Jack spent a mean of $4 in the last 5 days how much did he spend on the 4th day​

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9$

Explanation:

5 + 3 + 1 + x + 2 = 20

Subtract all those numbers

x = 9

5 + 3 + 1 + 9 + 2 = 20

20 / 5 = 4

I hope this helped!

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- Zack Slocum

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$3.20

Step-by-step explanation:

first one because it can't have a fraction in it

step-by-step explanation: