What is the slope of the equation

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

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 .

One integer is 8 times another. if the product is 72, then find the integers