I am not good at math at all so help please.I am trying pass...Thank-you in advanced to those who actually answer the question..

What is the lcm of 16 and 40 ? 24 and 40 ?

You are choosing between two health clubs. club a offers membership for a fee of $ 28 plus a monthly fee of $ 20. club b offers membership for a fee of $ 20 plus a monthly fee of $ 22. after how many months will the total cost of each health club be the same? what will be the total cost for each club? in __ months the total cost of each health club will be the same.

Which expression is equivalent to the square root of 2 multipllied by 5 divided by 18