Answer:
180.166889
Explanation:
for every 0.10 pounds is 45.3592 so just multiply that with how many pounds you have and there is your answer please give me the brainliest answer? 
:) Hoped this helped!!! Have a good day!!! <3
 
        
             
        
        
        
B I’m pretty sure. (Sorry if I wrong-)
        
             
        
        
        
One of the differences I can think of is that hydrogen is no longer listed as a group I element.
According to the mendeleev tables that I looked up, hydrogen is catorgrized as a group I element, along with Lithium, sodium, Potassium etc. However, nowadays, hydrogen does not belong to any groups in the periodic table. This is because there are arguments about whether hydrogen belongs to group I. Group I elements are all alkali metals, while hydrogen is not. However, some people says that hydrogen only have one outer shell electron so it should be in group I. Some people even say hydrogen should belong to group VII because it only needs one more electron in order to achieve the duplet of electrons.
Therefore as you may notice, hydrogen in modern periodic tables are put in the center of the periodic table on the top.
        
             
        
        
        
Lengthy problem. I have attached a paper with the answer.
keep in mind that the way to answer these question depends on the professor's way of teaching it. 
let me know if you don't understand