Cheng-Yu ordered a book that originally cost $24 from an online store. They are having a sale for 15% off all books, what is the cost of the book after the sale?

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?