To find the price per item when x=25, we can use the equation:
Price per item = Total cost / Number of items
Given that Mrs. Kasali spent a total of 16,000 and the price per item is 1320, we can substitute these values into the equation:
Price per item = 16,000 / Number of items
1320 = 16,000 / Number of items
To find the number of items, we can rearrange the equation:
Number of items = 16,000 / 1320
Number of items ≈ 12.12
Since the number of items cannot be a decimal, we need to round it to the nearest whole number. In this case, the nearest whole number is 12.
Therefore, when x=25, the price per item is approximately 1320 and Mrs. Kasali can buy 12 items.