You have an Azure subscription that contains a virtual network named VNet1. VNet1 has a subnet mask of /24. You plan to implement an Azure application gateway that will have the following configurations:

• Public endpoints: 1

• Private endpoints: 1

• Minimum instances: 1

• Maximum instances: 10

You need to configure the address space for the subnet of the application gateway. The solution must minimize the number of IP addresses allocated to the application gateway subnet.

What is the minimum number of assignable IP addresses required?