Maria wanted to bring back 5 million grains of sand from her trip to the beach. Each grain of sand weighs approximately 6.7 x 10^(-7) kg. How heavy is the bag of sand that maria brings home?
A. Multiply 5,000,000 (6.7 * 10^(-7) ) = (5 x 10^(6) x (6.7 x 10^(-7) ) = (5 x 6.7) (10^(6+(-7) kg
B. Divide 5,000,000/6.7 x 10^(-7) = 5x10^(6)/6.7x10^(-7) = (5/6.7) x 10^(6+(-7) = 0.74 x 10^(-1) = 0.074kg
C. Multiply 5 (6.7 x 10^(-7) = 33.5 x 10^(-7) = 3.35 x 10^(-6) kg
D. Multiply 5,000,000 (6.7 x 10^(-7) = (5 x 10^(-6) x (6.7 x 10^(-7) = 5 x 6.7) (10^(6+7) = kg