How do i get the answer to this question 1.7h-(1.4h+5)

Anewborn baby had about 26,000,000,000 cells. an adult has about 4.94 times 10 to the 13 power cells. how many times as many cells does an adult have than a newborn

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Need on this geometry question. explain how you did it.