A snowboarder descends a 1200-foot hill in 3 minutes. What is the mean change in elevation per minute?

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

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?

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6