Suppose you buy flour and cornmeal in bulk to make flour tortillas and corn tortillas. flour costs $1.50/lb. cornmeal costs $2.50/lb. you want to spend less than $9.50 on flour and cornmeal, and you need to at least 4 lb altogether.
a. write a system of inequalities that describes this situation.
b. graph the system to show all possible solutions.
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