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Maths Puzzle
Numerical Ability
how do you solve 60=[400/(1+r)^3]
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book Other Question
what is the solution to z/20+1/12=z/15-1/10 and 4W+23/5=19-W/7
solving quadratic equations by factoring:
(x+5)(x+4)=0
2h^2-h-3=0