Question

2. A textbook costs $25. For orders of at least 50 books, there is a discount of $80 to cover

savings in the shipping costs. The school district plans to order at least 50 textbooks,
Write an expression that represents the total cost for n books, Show your work,
250
Expression:

Answer 1

When
`n\geq 50= 25n-80`

Explanation:

If
`n\geq 50= 25n-80`

If the school buys n books, they purchase each book for $25, so that would be 25n

Since they're buying more than 50 books, they get a discount of $80.

So when n is greater or equal to than 50, they get a discount. which gives the expression
`n\geq 50= 25n-80`