CAN SOMEONE HELP ME ASAP? I don't understand what the instruction want me to do. THANKS IN ADVANCE!

Observe each of the functions below and understand their functionality. You must use GNU gcc under ASU General to implement the code in this question. int addf (int a, int b) return a b; int cubef (int a) ( return a *a*a int minf(int a, int b) return a if(a