Two people bought gas. Each gallon of gas cost the same amount. The money that they spent, in dollars, is represented by the expression shown 24+51 Creat an equivalent expression, using a common factor to show the cost of each gallon of gas and the number of gallons each person bought

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.