Find the average rate of change for the situtation.

The price of shoes decreases ​$91 over 7 days.

To find the average rate of change, we divide the change in price by the number of days:

Average rate of change = Change in price / Number of days

In this situation, the change in the price of shoes is ​-$91 and the number of days is 7.

Average rate of change = -$91 / 7

Therefore, the average rate of change for the situation is approximately -$13 per day.

To find the average rate of change, we need to divide the change in the price of shoes by the number of days.

Change in price = $91
Number of days = 7

Average rate of change = Change in price / Number of days
= $91 / 7

So, the average rate of change for the situation is approximately $13 per day.