People say that the world is going to end january 21, 2021? What are your thoughts?

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?

Add the fractions and simplify 1/2+ 1/3

How can you tell when x and y are not directly proportional?