+0  
 
0
86
1
avatar

If n is a positive integer such that the units digit of n^2 + 4n is 7 and the units digit of n  is not 7, what is the units digit of n + 3? 

 Jul 6, 2020
 #1
avatar
0

The units digit is 1.

 Jul 7, 2020

37 Online Users

avatar
avatar