What is the slope of the line? a. 1/2 b. -1/2 c. 2 d. -2

I believe the answer is C.) 2.

The equation would be y = 2x.

This is true because the line shifts two units down (y) for every 1 unit left (x).

The answer isn't -2 because both y and x are moving negatively (if that makes sense). If x were moving to the right, and y was moving down, then the answer would be -2.

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