Dan's grandmother gave him $30 for his birthday. he decides to put $20 in a box for saving. every week his parents give him $5 for his allowance. he decides to start adding $4 of his allowance to the box every week. what is the regression line for predicting the amount of money (ŷ) that will be in his box from x weeks of adding to the box?

Step-by-step explanation:

Let the regresssion line be linear because of a constant amount of money coming in. Let y be the total amount of money in the box and x the weeks of adding to the box:

We know that he puts $20 in the box from his birthday and $4 every week for x weeks. Therefore the total amount of money will be:

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

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