A sweatshirt at the store is being offered at a 20% discount. if the original price of the sweatshirt is x, which answer choice shows an expression that represents the discounted price of the sweatshirt.

The choices are:
1.20x
0.75x
X+0.20x
X-0.20x

A3cm×3cm\greend{3\,\text{cm} \times 3\,\text{cm}} 3cm×3cm start color greend, 3, space, c, m, times, 3, space, c, m, end color greend rectangle sits inside a circle with radius of 4cm\blued{4\,\text{cm}} 4cm start color blued, 4, space, c, m, end color blued . what is the area of the shaded region? round your final answer to the nearest hundredth.