Need help please

Starting Address: 222.111.1.0/24 Requirements: 3 subnets Starting Prefix Length: /24 Starting Subnet Mask: 255.255.255.0 Starting Subnet Mask binary format: 11111111.11111111.11111111.00000000 Custom Subnet Mask binary format: Custom Prefix Length: Custom Subnet Mask: Subnet Range (value of last subnet mask bit): Broadcast Subnet Subnet Address Number First Usable Last Usable 0 222.111.1.0 222.111.1.1 Calculations