Answer:
2686
Step-by-step explanation:
First let's find the area of the garden.
[tex]60 \times 50 = 3000ft {}^{2} [/tex]
Now let's find the area of the pool.
[tex]3.14 \times 10 {}^{2} [/tex]
[tex]3.14 \times 100 = 314ft {}^{2} [/tex]
Lastly subtract both products.
[tex]3000 - 314 = 2686[/tex]