Garrett found the slope of the values in the table

No, he should have put the x values in the denominator and the y values in the numerator

Step-by-step explanation:

The formula for calculate the slope is:

You can observe in the formula that the y values must be in the numerator and the x values must be in the denominator.

Then, the correct slope is:

Then, Garret's slope is incorrect, because  he should have put the x values in the denominator and the y values in the numerator.

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart