An equation of Hamid’s revenue by multiplying the book price by the number of copies sold is x = ny.
<h3>What is an equation?</h3>
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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Answer:
the answer should be -5x - 30 + 30 y
Answer:10
Step-by-step explanation:You will do 8-4=4 4*k=40 40\4=10 k=10.
