Roberto is 3 years older than Carolyn. In 7 years the sum of their ages will be 81. How old is Roberto now?
1 answer:
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Answer:
The expression provided by the area (square meters) is given by: .
Step-by-step explanation:
The area of the algae colony is a function of the radius r (meters), so .
The radius of the circle formed by the algae colony is a function of time t (in minutes), so . So,
[Substituting the expression for radius]
Then the expression provided by the area (square meters) is given by: .
As given by the question
There are given that the profit of $16 milonin 2018 and $24 milion in 2019.
Now,
To find the profit,
Then,
Hence, the correct option is C.