Mr Imani wants to purchase paper and notebooks for his classroom. At Dollar Discount he can buy packs of paper, p, for $1.25 each and notebooks, n, for $2.50 each. This is modeled by 1.25p + 2.50n. Evaluate for p=10 and n=30 to find how much it will cost Mr Imani to purchase 10 packs of paper and 30 notebooks.
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