Pietro sailed his sailboat 1,260 yards in 30 minutes. what is the average number of yards he traveled per minute?

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

52 cm radius = diameter = area = circumference = circumfer

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