I think the answer will be B tell me if it’s right after
Explanation:
Hey there!!
An elements is called a pure substance because it is composed of only one kina of atoms in a fix proportion.
<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
It is an example of Hypermobility.
400 * 3 = 1200
A jet can travel 1200 minutes for 3 seconds