Principal Simons purchases boxes of pens for her school at an online store. The store charges her the
same amount for each box of pens plus a flat shipping
fee for any number of boxes she purchases. Selected
numbers of boxes and the corresponding total cost
including the shipping fee for that number of boxes are
shown in the table. Lett be a function that models the
total cost including the shipping fee, in dollars, to
purchase p boxes of pens. Based on the values in the
table, which of the following best defines the
function t?