There are 18 astronauts that are trained to go to the space station. The space shuttle can hold 7 astronauts, and they do not want to launch a space shuttle
that is not full. If they want to send as man, astronauts as possible, how many
shuttles will launch, and how many of the astronauts will remain on Earth?
Number of space shuttles that are launched:
Astronauts still on Earth:

They would send 14 astronauts (two space shuttles) and the other  four astronauts will remain on Earth.

Step-by-step explanation:

18 divided into 7 would be 2 4/7... You would need three more astronauts to fill a third shuttle.

None of the answers are correct.

Step-by-step explanation:

1 and 8 are corresponding angles.

They are not vertical because vertical angles look like this ><

They are not a linear pair because linear pairs = 180 and right next to each other.

They are not complementary angles because complementary angles = 90

And 1 and 8 are more that 90.

So it's A

Hope this helps ya! Keep smiling!