Answer:
27.5 inches
Step-by-step explanation:
1. convert 6.5 feet into inches
1ft = 12inches
6.5ft = 78
2. Subtract what the map will cover
78in-23in= 55 inches
3. Divide that number by 2 (since she wants spaces on both sides)
55/2= 27.5
23
if y=8 then you plug it inti the equation
2(8)+7
16+7=23