You can go the speed limit of 50 mph when you are driving on that specific road, provided that conditions such as weather, traffic, and visibility are safe. It's important to adhere to the speed limit unless otherwise directed by traffic signs or law enforcement. Additionally, always adjust your speed if necessary to ensure safety for yourself and others on the road.
the sign that says speed limit and that has a number with mph [miles per hour] on it ex:speed limit 50 mph.
When the school speed limit sign shows 20 mph flashing, the maximum speed limit is 20 miles per hour.
True
The 35 MPH speed limit remains in effect until you reach another sign which indicates a different speed limit. The 35 MPH may not have been intended to end immediately after the crosswalk.
I'm assuming you mean the 35 MPH sign that has a yellow background with black lettering. These signs you'd sometimes see below school zone signs, off/on ramp signs, corner signs. This sign suggests a speed where you can take the obstacle ahead safely. The sign is saying "35 MPH is a safe speed which you can take this obstacle at". Being a suggested speed sign, if your judgment says you can take the obstacle faster, then you can, it isn't a speed limit sign.
45 MPH
The speed limit in North Dakota depends on the type of road you are traveling on. It is 55 mph if you are on a gravel or dirt road, paved two lane county road and township highways if there is not a speed limit sign posted.It is 65 mph on a two lane highway if the posted sign says 65. It is 70 mph on paved four-lane divided highways. It is 75 if you are on Interstate 29 or interstate 94.
25
40 mph
As soon as you pass the sign. If you are in a 65 MPH zone and it changes to 55MPH, you are expected to be at 55 MPH at the sign.
56 and 64 mph
59 mph