Which set of ordered pairs does not represent a function? \{(2, 7), (1, 7), (0, -8), (5, -1)\}{(2,7),(1,7),(0,−8),(5,−1)}
\{(-1, -9), (-5, -2), (8, 4), (-5, 2)\}{(−1,−9),(−5,−2),(8,4),(−5,2)}< br /> \{(3, 1), (5, 5), (9, 8), (7, 6)\}{(3,1),(5,5),(9,8),(7,6)}
\{(2, 0), (1, -6), (4, 5), (-8, -6)\}{(2,0),(1,−6),(4,5),(−8,−6)}

The second option

Step-by-step explanation:

There can NOT be a function when one x-value coordinate corresponds to multiple x-values. -5 is corresponding with two different y-values, -2 and 2.

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2