Given IP  164 . 62 . 239 . 254 / 26  
#1. & 2.  Find the SubNetwork 

#3.  Find the First useable IP address  164 . 62 . 239 . 193 
#4.  Find the Broadcast address  164 . 62 . 239 . 255 
#5  Find the Last useable IP address  164 . 62 . 239 . 254 
#6.  What is the Total Number of IPs per Subnet?  64 
#7.  How many useable Hosts address per subnet?  62 
#8.  What is the Next Subnet Number?  164 . 62 . 240 . 0 
#9.  What IP Class is this?  Class B 
#10.  How many possible Subnetworks with this class?  Bits this Class = 16 Bits Subnet Mask= 26 2^ 10 = 1024 