Answer from cs61c-aj (Kevin Li 15855812) for Question 2
Parking meter (insert coin if its max hour it doesn't change state otherwise it goes up by a certain minute amount. States are minutes ), coinlaundry (deposit coin for minutes up to a certain max when counter goes to 0 state is idle. States is on or off and minutes), automatic transmission (five gears accelerate and it will go up the gears until it is the final gear where it will not go up anymore gear and deccelerate will bring down the gears. States are gears)