exam Maths Puzzle Numerical Ability

Hello out there,I need some help with three problems,the first one is,Determine whether sqrt 67 is rational or irrational.If it is irrational,find two consecutive integers between

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exam Other Question

simplify:


68-19
______- 32/8 +14 divided by 7
2+5
FIND THE FOCUS OF THE PARABOLA: Y2=20X