Which of the following sets of ordered pairs is not a function? {(1,4), (2, -3), (3, -2), (4,0)}
{(5,-4), (-2,-4), (–1, –4), (8, -4)}
{(7,-2), (-9, -1), (12.0), (0,5)}
{(1,1), (2,3), (4,-5), (2, -3)}

i dont get the question

step-by-step explanation:

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours