I have some questions about the Michigan road test?

I have my road test coming up in a week and I m super nervous and have a few questions: If the speed limit on the freeway is 70mhp, what should my speed be on the on ramp and off ramp? 2. Is it necessary to check your blind spot if you are changing into a lane that has just been added, like a right turn lane? sorry... show more I have my road test coming up in a week and I m super nervous and have a few questions:
If the speed limit on the freeway is 70mhp, what should my speed be on the on ramp and off ramp?
2. Is it necessary to check your blind spot if you are changing into a lane that has just been added, like a right turn lane? sorry if that doesn t make any sense
3. when approaching a railroad with no lights, should I slow down to go over them or should I continue with the speed limit?
Please let me know any tips that you have, I very much appreciate it
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