exam Maths Puzzle Numerical Ability

simplify this expression:
4a+6b+a

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exam Other Question

Coordinate of hte center: (3,-5)
Length of major axis: 20
Lengh of minor axis: 8
Major axis is parallel to x-axis

what is A and B?
Is it vertical or horizontal?
What is the write this phrase as an expression Eleven less than three times a number