Question

A decimeter (dm) is one tenth of a meter. The diameter of Earth is 1.3 x 104 km. What is the diameter expressed in decimeters?

1.3 × 107 dm

1.3 × 1011 dm

1.3 × 108 dm

1.3 × 10–5 dm

Answer 1

1.352 x 10^7 dm so it is the first one