Catherine solved 4 × 9 = .
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The area covered by the plant increases by 16.66% every month.
Step-by-step explanation:
Step 1; It is given that the plant's area triples every year. So if the plants' area is 100 square feet at the beginning of a year it will be 300 square feet at the end of the year. So there will be an increase of 200% in a year.
Step 2; So to find the increase per month we divide the 200% increase per year by 12 so that it becomes a monthly increase.
Monthly increase = % = 16.66%. So the tropical plant's area increases by 16.66% each month.