How many 4 x 4 inch ceramic tiles would it take to cover a 120 square foot area?
a) 360
b) 720
c) 1080
d) none of the above

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