At the beginning of a bake sale mary set aside 4 pies for herself karen bought half of the remaining pies for her birthday party and 5 more pies were sold during the sale. when the sale was over there were 19 pies remaining. how msny pies were there before the bake sale started

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Which geometric principle is used to justify the construction below?

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read