The value of y varies directly with x. if x=5,then y=12.What is the value of x when y=30

What is the greatest common factor of 8 and 36

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?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie