A farmer is planning how to use the land in a rectangular field. The rectangle shown represents the field.

a rectangle with the bottom labeled 2.5 times 10 cubed feet and the right side labeled 3.3 times 10 cubed feet

Part A: If half of the field is used to grow crops, what is the area of the portion of the field that has crops growing? Show every step of your work.

Part B: Write the final answer in scientific notation with the correct number of significant digits, and label with the correct units.

Part C: Explain how you chose the number of significant digits in the final answer.