An equation of Hamid’s revenue by multiplying the book price by the number of copies sold is x = ny.
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.
Know more about equation here:
https://brainly.com/question/2263981
#SPJ1
