PLEASE SHOW WORK ILL GIVE BRAINLIEST

Answer:
[tex]\frac{9}{20}[/tex] [tex]miles^{2}[/tex]
Step-by-step explanation:
To find the area of a rectangle, use the formula A = l*w, where l is the length and w is the width.
A = [tex]\frac{9}{10}[/tex] x [tex]\frac{1}{2}[/tex] = [tex]\frac{9}{20}[/tex] [tex]miles^{2}[/tex]