What is the unit rate for 15 degrees in 2 hours

Ok in order to get the unit rate you need to take w. e. unit you have and make it 1, so if you have 15 degrees in 2 hours and it wants you to get the unit rate you need to find the degree it will be in 1 hour so you just take 15 and divide it by 2 and your unit rate is 7.5 degrees in one hour