Answer:
a
Step-by-step explanation:
I'm assuming the deck is the shaded area.
To find the area of the deck, find the area of the large circle and subtract the area of the small circle from it:
A of large circle: R = (4.2/2) + 1.7 = 3.8; area: 3.8^2 * pi is about 45.3.
A of small circle: r = 4.2/2 = 2.1; area: 2.1^2 * pi is about 13.8
Now, subtract:
45.3 - 13.8 = 31.5 meters squared
Here’s the correct answer and the way i got to it. Hope this helps :)
In order to multiply fractions, we multiply the two numerators together, and multiply the two denominators together.

12/35 is the answer