book Maths Puzzle Numerical Ability

Hello. My name is kate and i was wondering if you could help me understand and complete these two problems.
For the expression 2x^2 - 5x + 2
A.Find the value of x if the

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book Other Question

The Jones family drove to Disneyland at 50 mph and returned on the same route at 40 mph. find the distance to Disneyland if the total driving time was 7.2 hours. The driver of a car with a leaking radiator found it necessary to add water twice on a trip. The radiator held 120 liters and was filled with a 30% alcohol solution at the start. A