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R(f(p)), where Q = f(p) is the number of barrels of oil sold by a company when the price is p dollars/barrel and R(Q) is the revenue earned in millions of dollars from a sale of Q barrels.

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The Big Four for this composition are addition, subtraction, multiplication, and division.

Composition of R(f(p))

Let's break down the composition of R(f(p)). First, let's define the functions involved:

- Q = f(p) represents the number of barrels of oil sold by the company when the price is p dollars/barrel.

- R(Q) represents the revenue earned in millions of dollars from the sale of Q barrels.

Now, to find the composition R(f(p)), we substitute f(p) into R(Q) as follows:

R(f(p)) = R(Q) = R(f(p))

For the Big Four for this composition, we consider the four basic operations: addition, subtraction, multiplication, and division.

For example, we might have R(f(p)) + R(f(p)), R(f(p)) - R(f(p)), R(f(p)) * R(f(p)), or R(f(p)) / R(f(p)).

Remember to check for any restrictions on the domain and range of the functions when performing these compositions.

The probable question may be:

Suppose Q = f(p) be the number of barrels of oil sold by a company when the price is p dollars/barrel and suppose R(Q) is the revenue earned in millions of dollars from a sale of Q barrels. Address the Big Four for the composition R(f(p)).

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