11. A's and B's heights are in the ratio 4:5. If B's and C's heights are in the ratio 3:4, who is the tallest among
the three?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

Acertain volume of water contains 100000 hydrogen atoms and 50,000 oxygen atoms how many hydrogen atoms are in a volume of water containing 4 million oxygen atoms