Martha is putting a wallpaper border along the top of four walls in her bedroom. the room is rectangle that measures 12 ft. by 10ft. one package of wallpaper border is 9 ft long. how many packages does she need? need answer asap

Enter the missing numbers in the boxes to complete the table of equivalent ratios.time (min) distance (km)? 36 9? 1512 ?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.