Try another version of this question Get help: Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Katherine is 18 years younger than Joe. If Joe is 54 years old, how old is Katherine?
years old
Enter DNE for Does Not Exist, oo for Infinity `54 - 18`