exam Maths Puzzle Numerical Ability

Can someone help me show the number is rational by writing it as a quotient of two integers:

22

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exam Other Question

the standard is 5 or fewer defects per 1,000 products shipped. if i have an average ratio of 2.5:1,000 then how much does this figure fall below the minimum standard of 5??? Hello I am struggling with this question in my college course work any help would be appreciated...

(e^x)^4 e^5
____________= 3

e^2x