Yes!
I had a hunch — I googled this problem and got a feeling that the rocket tech needed to fully counteract Earth's revolution doesn't exist, and they were mentioning Jupiter fly bys for a gravitational tug.
Yes, I think your correction is valid.
I meant Earth's revolution around the sun, not its rotation around its own axis.
And yes, I fully agree with your interpretation of 4)
Got this problem on a standardized test
Suppose scientists wanted to land a probe ON the Sun.
The probe is being launched from the Earth.
What direction should they aim launch the probe if they are launching it from the Earth?
1) Directly towards the sun
2) Directly away from the Sun — obv...