exam Maths Puzzle Numerical Ability

Jim and Juan are going to drive their motorcycles from Gastonia to Charleston. Jim leaves at 8:00 am but Juan can not leave until 8:30 am. If Jim drives at 50 mph and Juan drives at 55 mph, at what time will Juan catch up with Jim?

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exam Other Question
I need to find the correct end behavior for the given polynomial function
p(x)=-7x3+2x2+7x-4 (7/x+4) - (5x/3x-2)

I think the answer is:

- (5x^2-x+14/(3x-2)(x+4) but this wasnt one of my choices??