Answer: Jason can arrange the books in 35,280 more ways than Jenna.
Step-by-step explanation: To calculate the no. of ways Jason can arrange 8 books on the shelf we use 8!
8!= 8×7×6×5×4×3×2×1= 40,420
The no. of ways Jenna can arrange 7 books on the shelf is 7!
7!= 7×6×5×4×3×2×1= 5040
Hence, the difference between these values is,
40,320-5040=35,280