See
https://www.amazon.com/Physics-Scientists-Engineers-Paul-Tipler/dp/0716789647/ref=sr_1_1?crid=3631U70EWXK19&keywords=physics+for+scientists+and+engineers+tipler&qid=1690765484&sprefix=physics+for+scientists+and+engineers+tipler%2Caps%2C112&sr=8-1
New single paperback goes for $122
These are virtually new condition. Excellent condition, no markings etc. Both Vol. 1 and Vol. 2
Most used individual volumes on Amazon are good condition or worse (marked up, etc.) and go for ~$40.
Asking $110 for the two-volume like-new set. Less than half the price of buying the two volumes new.