Hello lightninghelix

Suppose they make deluxe notebooks and regular notebooks. Quote:

a deluxe notebook with subject dividers, which sells for $4.00, and a regular notebook, which sells for $3.00.

The total selling price is $ . Quote:

The production cost is $3.20 for each deluxe notebook, and $2.60 for each regular notebook

So the total production cost is $

Quote:

between 2000 and 3000 deluxe notebooks

Quote:

between 3000 and 6000 regular notebooks

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not more than 7000 altogether

Can you continue from here?

Grandad