exam Maths Puzzle Numerical Ability

9-(-2)(-7)=

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exam Other Question

how mant times greater is 5/6 of 30 than 1/6 0f 30

I think it is 4 as 1/6 of 30 is 5 so 5/6 would be 25, I am just unsure

i think this is the answer as 6/6 would be a whole

Alex
f(-2)=2x+1, if x<2