An automobile manufacturer increased the average mileage on a car from 17.4 mi/gal to 17.9 mi/gal. Find the percent increase in mileage.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

the correct answer would be b) volume versus temperature, because they are also directly proportional.