Whats my favorite color? yes or no?

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250

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.

Felix wrote several equations and determined that only one of the equations has no solution. which of these equations has no solution?