If A and B are finite sets such thatn(A)=5 and n(B)=7, then find the number of function from A to B

If A and B are finite sets such thatn(A)=5 and n(B)=7, then find the n

1.	If A and B are finite sets such thatn(A)=5 and n(B)=7, then find the number of function from A to B
Answer» 5