Which of the relations given by the following sets of ordered pairs is not a function?

select one:
a. {(52)}{(52)}
b. {(−4,−−1,−,,,10)}{(−4,−−1,−,,,10)}< br /> c. {(−8,−−6,−−4,−−2,−−1,−4)}{(−8,−−6,− −4,−−2,−−1,−4)}
d. {(−6,−3,−,,−,3)}

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?

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The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score