Mã hóa đoạn thư: "LET GO HOME" bởi các hàm mã hóa sau:a. f(p) = (p+ 3)mod26 b. f(p) = (5p+ 1)mod26

Polygon mnopq is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image m′n′o′p′q′. the coordinates of point m are (2, 4), and the coordinates of point n are (3, 5). the slope of is .

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?