Agroup of biologists found a total of 28 loggerhead turtle nests along a beach during a certain season. this was 40% of the total number of turtle nests the group found during that season. what was the total number of turtle nests the group found during that season?

70
85
110
143

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.