A college student charges a fee for typing term papers. He uses the formula below where n represents the number of pages and c represents the cost he charges.
 c = 8 + 0.15n
 Which phrase best describes how he charges his customers?
 Select one:
 $8.15 for each page
 $0.08 plus $0.15 per page
 $8 plus $0.15 per page
 $0.15 for each page