What is the equivalent

Amarathon runner jogging at a constant speed for 45 minutes is it proportional to time or not

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

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.