An appropriate unit for Luisa's purpose would either be square feet or square yards. these are easy, measurable sizes that would work for measuring lawn sizes.
In these joty is the odd one.
Answer:
c=49
Step-by-step explanation
Because 40+40+9+9 =98 then since you turned it into a square divide it by 2 getting c=49
The answer is D because if you made a number line you would contrast them and there you get 612. hope it helpe