Final answer:
The farmer had 4,393,500 square feet of land, which is calculated by multiplying 101 acres by 43,500 square feet per acre.
Step-by-step explanation:
To calculate the total square feet of land the farmer had, you need to multiply the number of acres by the number of square feet in one acre.
Since one acre is 43,500 square feet, and the farmer has 101 acres, you would perform the following calculation:
101 acres × 43,500 square feet/acre = 4,393,500 square feet
Therefore, the farmer had a total of 4,393,500 square feet of land.