Caleb made the table below to show the number of hours he works and the amounts he earns over a four week period Hours Earnings in dollars 12 140 Caleb s Earnings 15 170 18 200 21 230 Which describes whether the relationship between the earnings and the number of hours represents a direct variation O He earns 20 more than 10 times the number of hours he works each week so the earnings vary directly with the hours The earnings increase by 30 for every increase of 3 hours so the earnings vary directly with the hours The ratios of earnings to hours are not the same each week so the earnings do not vary directly with the hours The earnings increase at a steady rate so the earnings do not vary directly with the hours