Explanation:
Jeff spends $2.52 per gallon and buys 14 gallons, so his total expenditure is:
Total spent by Jeff = $2.52/gallon * 14 gallons = $35.28
Anna spends $2.16 per gallon and buys 15 gallons, so her total expenditure is:
Total spent by Anna = $2.16/gallon * 15 gallons = $32.40
To find the difference in their expenditures, we subtract Anna's total from Jeff's total:
Difference = Total spent by Jeff - Total spent by Anna
Difference = $35.28 - $32.40 = $2.88
Therefore, Jeff spends $2.88 more than Anna on gas.