Can you mix transmission fluid with engine oil?

I don’t have a license, and my sister usually takes me to work. Yesterday she was sick, and she told me to take her keys and take the car. I was too nervous to do that, so I just called out, but I’m worried I’ll get in trouble at work if that happens again. What would happen if the police pulled me over and found out I was driving without a license?

I have to take my car in next week to get the alignment fixed. I’m pretty busy, so I won’t have much time to waste and need to plan my visit pretty precisely. How long does it usually take to fix the alignment on a car?

How do I know if there's water in my gas tank or fuel system? My neighborhood got hit pretty hard by a recent hurricane. Luckily, our building is okay and we didn't have any issues with our home. Our car, though, is a different story—the garage where we park was completely flooded. I know I need to check my fuel system for water to get a sense of how bad the damage is, but I've never had to do this before and I'm not sure where to start.