Final answer:
To find the total change in the number of bushels the farmer has for sale after 6 days, multiply the average daily sales by the number of days. The total change is 468/5 bushels.
Step-by-step explanation:
To find the total change in the number of bushels the farmer has for sale after 6 days, we need to calculate the total number of bushels he sells in 6 days. Using the average number of bushels he sells daily, we can multiply it by the number of days.
The average number of bushels the farmer sells daily is 15 3/5. To convert this mixed number to an improper fraction, we multiply the whole number by the denominator and add the numerator. This gives us (15 * 5 + 3) / 5 = 78/5.
Now we can calculate the total number of bushels sold in 6 days by multiplying the average daily sales (78/5) by the number of days (6). Final calculation will be (78/5) * 6 = 468/5. Therefore, the total change in the number of bushels the farmer has for sale after 6 days is 468/5 bushels.