exam Maths Puzzle Numerical Ability

what do points on the line parallel to the y-axis in 3 units to the left of it have in common?with a summary.

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exam Other Question

Tutor please help. Which two lines are parallel?

A) x+y=26 (B)2x+4y=15 (C)y=(2/3)x+14

I will be very grateful for your help.
It is an odd two-digit number,the sum of its digits is 8,the sum of the squares of its digits is 50. What is it?