Elmo wrote Kris a check for $601.73, and Kris deposited the check into her checking account. Where was Kris' signature?

Kris will sign the check on the back side to allow it.

Explanation:

Elmo will sign the check on the signature line in the front, and Kris will sign the check back to approve it. A check is a paper that requires a bank to pay a certain amount of money from the fund of an individual to the individual in whose name the check was given.

The drawer and payee can be human persons or corporate entities.

Elmo would sign the check on the front signature line and Kris would sign the back side of the check to authorize it