Can you please solve Q2 and Q4, Q4 depends on Q2 to be solved, thank you!

Q2: Based on the information in the graphic shown, design a network addressing scheme that will supply the minimum number of subnets, and allow enough extra subnets and hosts for 70% growth in all areas without using VLSM. Circle each subnet on the graphic and answer the questions below. Q4: Repeat Question 2 while using VLSM on the subnet between Router C- Router D in order to provide IP addresses for the 3 WAN connections between routers. Then, calculate the amount of IP addresses that were freed by this operation. Q2: Based on the information in the graphic shown, design a network addressing scheme that will supply the minimum number of subnets, and allow enough extra subnets and hosts for 70% growth in all areas without using VLSM. Circle each subnet on the graphic and answer the questions below. Q4: Repeat Question 2 while using VLSM on the subnet between Router C- Router D in order to provide IP addresses for the 3 WAN connections between routers. Then, calculate the amount of IP addresses that were freed by this operation