Hi !
The Answer is :-

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First get the same denominator 2/5=4/10 so from here do 7/10-4/10 the denominator stays the same and the numerator changes, 3/10 is the answer so Heather live 3/10 of a mile closer to the library than the school
The coefficient of correlation is independent of change of scale and origin of the variable X and Y. Change of origin means some value has been added or subtracted in the observation. If we divide all observations with x then new mean =initial mean/x.
Answer:
multiplitcation
Step-by-step explanation:
<span> 3x+5y = 15
5y = -3x + 15
y = -3/5(x) + 3
hope it helps
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