A customer(s) needs 60 pencils. If they buy them on sale, how many of the 60 pencils can they get for free? (what the picture sa
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Answer:
see below
Step-by-step explanation:
A relation is a <em>function</em> when there is exactly one output for each input. That is the case in this table, so the relation between the original price and sale price is a function.
