Maurice has a house washing service that power washes houses on the weekends. He washed 4 small houses in 4 hour and 40 minutes last saturday. What was his average washing time per house? (Express your answer in hour & minutes per house)

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Which expression converts 45 degree to radians

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.