You subtract the 3 dollar soda from the total to find out how much he spent on candy bars all together.Then, you divide that number by how many candy bars he purchased, 6 to get your answer, $3
First we just convert the angle from radians to degrees
Now that's too big, all this means is if we start rotating from the positive y-axis in a circle we will cross the starting point 2 times, 2 full circles;