Answer:
Step-by-step explanation:
To find out how much total soil she needs requires that you find the area of the circular garden using the formula
[tex]A=\pi r^2[/tex]
If the diameter of the garden is 8 feet, then the radius of the garden is 4 feet. Filling in the formula then:
[tex]A=\pi (4)^2[/tex]
That would either be 16π feet squared, or ≈50.265 feet squared