exam Maths Puzzle Numerical Ability

hi, im solving 4 questions but im stuck on doin a brick wall question becauase i dont get it, you have to figure out the value of the x in each p[roblem

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exam Other Question

Find the equation of the parabola with vertex (3/2, -1/2), horizontal axis of symmetry, and passing through (-3, 1). Write the equation in standard conic form.

Please help me! Given set A= (1,2,3) and set B= (2,3,4)

A. A and B are equal sets
B. A and B are equivalent sets
C. A and B are both equal and equivalent.
D. No of the above.