2
Looks like you are using the 2022 version of check against the 2021 version of pset1 cash. The 2022 version of the pset has a new function to implement called get_cents. (There may be other differences, but that jumps off the page).
Be sure to review this guide if you started cs50 in 2021.
Only top voted, non community-wiki answers of a minimum length are eligible