Desmond is putting his videotape on a shelf. the shelf is 12 inches long. if each videotape is 1 1/2 inches wide, how many video tapes can he put side-by-side on the shelf?

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units