Answer:
Explanation:
Square area of avocado plant: l · l ⇒ l²
Money: 7 · l²
Square area of living sector: (200 - l) · l
Money: 3 · l · (200 - l)
Every week, Riley spends $3 per square meter on the area where she lives, and earns $7 per square meter from the area where she grows avocados. That way, she manages to save some money every week.
⇒ 7 · l² > 3 · l · (200 - l)