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?

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

Can some one me with these questions

Triangle knm is what is true about the sides of knm