Answer:
Part A: 16 square miles (C)
Part B: total area multiplied by 3 divided by 4 (D)
Explanation:
Part A: To find area you have to do Length x Width and it tells us its 1 mile long and 16 miles wide, so 1 x 16= 16.
Part B: I assume its meant to say the farmer will only be planting in 3/4 of the land (not 34 lol). So you take 16 multiply by 3 and then divide that answer by 4. And that's how you get the answer to that.