exam Maths Puzzle Numerical Ability

I can solve the Pyramid puzzel to a point

A = 44 All the answers are right except B + D which needs to = 129

B = 44 A+ B = 88, B + C = 102 , C + D = 119, A + D

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exam Other Question

Please can someone walk me through factoring this polynomial?

Factor completely

64x^3-27

Thank you a cotographer is revising a map that will convert all map distances to millimeter.how will he express the distancebetween two places if they are 43 dm apart?