The New York State Common Core Sample Questions for the Regents exam in Algebra 1 (Common Core) from fall 2013 (see it here) includes the following situation in question 12:
At an office supply store, if a customer purchases fewer than 10 pencils, the cost of each pencil is $1.75. If a customer purchases 10 or more pencils, the cost of each pencil is $1.25.
I find this question to be a microcosm of our society in the new millennium. Overlooking the fact that a dozen pencils should cost less than two bucks, let's let the costs be as stated.
I need 9 pencils. Do I overspend and pay out $15.75 (eight times $1.75) or do I buy 10 for $12.50 and just toss the one I do not need? Do I waste money or waste product? (I use those last two words wisely.)
Which is the intelligent choice?