Astorage tank at a 24-hour gas station contains 25,000 gallons of gasoline at 8: 00 a. m. on monday. at 8: 00 a. m. on friday of the following week, the amount of gasoline in the tank has decreased to 7000 gallons. what is the average hourly rate of change of gasoline in the tank?

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