Chad wants to buy some books over the Internet. Each book costs $10.01 and has a shipping cost of $9.96 per order. If Chad wants to spend no more than $50 for his books, which inequality shows the maximum number of books, p, that he can buy?
9.96p - 10.01p < 50, so p < 1
9.96p + 10.01p < 50, so p <2
9.96 - 10.01p < 50, so p < 3
9.96 + 10.01p < 50, so p < 4