Which shows the best use of the associative and commutative properties t make simplifying 2/5-15+ 8-1/5+3 easier? A [2/5 + (-15)] +[8+(-1/5)+3
B.[3+2/5+(-15)] +[(-1/5) + 8)
C.[2/5+(-1/5)]+[8+3+(-15)]
D.[2/5+8+(-15)]+[3+(-1/5)]

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

52 cm radius = diameter = area = circumference = circumfer

The equatorial radius of earth is approximately 6 × 10^3 km, while the equatorial radius of saturn is approximately 6 × 10^4 km. which of the following is true? a. the equatorial radius of saturn is approximately one hundred times that of earth. b. the equatorial radius of saturn is approximately ten times that of earth. c. the equatorial radius of earth is approximately one hundred times that of saturn. d. the equatorial radius of earth is approximately ten times that of saturn.