A recipe book shows measurement conversions for ounces to cups. It shows that 4 ounces converts to 0.5 cup and 12 ounces converts to 1.5 cups. Write an equation that shows the proportional relationship between cups and ounces where c represents cups and n represents ounces. c = 0.125n c equals 4 over 0.5 times n n equals 0.5 over 4 times c n = 0.125c