This is an angle relationship question in geometry

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?

What statement is true? 2x^2-9x+2=-1

What is not true about kl and mn? what is mn? (show )