Write a linear equation that represents the arithmetic sequence 12,6,3,1.5

Which equation matches the graph shown ?

You are on a cycling trip around europe with friends. you check the weather forecast for the first week. these are the temperatures for the week. sun mon tues wed thurs fri sat 16°c 20°c 24°c 28°c 28°c 23°c 15°c what is the mean temperature forecast for the week?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?