Respuesta :

An equation of Hamid’s revenue by multiplying the book price by the number of copies sold is  x = ny.

What is an equation?

The process of equating one thing with another.

Let Hamid’s revenue is $x and the price of book is $y.

If he sold n number of copies.

Then, the general equation will be x = n * y.

Therefore, an equation of Hamid's revenue will be x = ny.

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