A store allows customers to fill their own bags of candy. Glen decides he only wants caramels and candy corn. Caramels sell for $0.95 per pound, and candy corn sells for $0.79 per pound. Glens bag weighs 1.7 pounds and it costs him $1.48. If p is the number of caramels Glen purchases, what expression could be used to represent the number of pounds of candy corn he purchases?