What is the length of an arc cut off by an angle of 3 radians on a circle of radius 6 inches?

The spotter on the ground is standing beneath the safety net. what is his distance from the base of the platform, to the nearest meter? 3 meters, 2 meters, 4 meters, 1 meter?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"