... Catalog</h1><% for product in @products -%><div class="entry"><%= image_tag(product.image_url) %><h3><%=h product.title %></h3><%= product.description ... ",").number_to_currency(12345 678 90.50) -> $1,234,5 67, 890.50number_to_currency(12345 678 90.506) -> $1,234,5 67, 890.51number_to_currency(12345 678 90.50, :unit =>"£",:separator ... Production Application Chores . . . . . . . . . . . . . . . . . . . 6 67 28 .7 Moving On to Launch and Beyond . . . . . . . . . . . . . . . . 669Part V—Appendices 671 A Introduction to Ruby 672 A.1...