First one is the answer
x = +- sqrt (10)
I assume you're talking about time. 9:09 is 47 minutes after 8:22.
It's the last answer. Think about when you move a point on a graph left 4 spaces it's on the x axis. Because it's going left it's going towards the negative numbers hence minus and not plus. some concept for the y axis.
I don't know, but I think we/you have to divide 5 into 6. If it is wrong, then i'm so sorry.
46.5cm squared I believe
Hope this helped ;)