An elephant has a mass of 6.8 × 10 3 kg.
a blue whale has a mass of 1.71 × 10 5 kg.
about how much greater is the mass of the blue whale?

a. 164 kg
b. 1.64 × 10 2 kg
c. 1.64 × 10 5 kg
d. 1.1 × 10 2 kg

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?