A toy car is placed at 0 on a number lineit moves 8 cm to the left then 4 cm to the right and then 6 cm to the left. What is the total distance the car moved?

18 cm

Explanation:

Because the question asks for the total distance moved the fact that the car is on a number line is irrelevant. So all you have to do is 8+4+6 which adds up to 18. and the units are all in cm so the final answer is 18 cm.

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation: