You have just bought a new sony 55” 3D television set for 1,600$.The value of the television set decreases by 250$ per year. How long before the television set is worth half of its original value?

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Evaluate the following expression 1/3^2

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.