You are buying packages of beads to make bracelets. Each package costs $3 plus 7% tax. You have a gift card for $15, and you plan to use only the gift card to pay for the beads. Which function c(p) represents the total cost, where p represents the number of packages of beads you purchase? What is a reasonable domain?

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  1. c(p) = 3.00p * 1.07
    since c <= 15,
    3.00p*1.07 <= 15.00
    p <= 5/1.07 = 4.67

    So, a max of 4 packages can be purchased

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