I need help with a math assignment i linked it below i have been trying to solve it but i cannot so if somebody could help me out it would be great

Answer:
Given that,
Area of the garden is,
[tex]2(2.5x+3.5)[/tex]Area of the garden and walkway is,
[tex]2.5(4x+6)[/tex]To find the area of the walkway
Area of the walkway =Area of the garden and walkway-Area of the garden
we get,
[tex]\begin{gathered} =2.5(4x+6)-2(2.5x+3.5) \\ =10x+15-5x-7 \end{gathered}[/tex][tex]=5x+8[/tex]Answer is:Area of the walkway is 5x+8