1. our entire solar system orbits around the center of the milky way galaxyabout once every 230 million years.
2. the milky way and andromeda galaxies are among a few dozen galaxies that make up our local group.
3. the sun appears to rise and set in our sky because earth orbitsonce each day.
4. you are one year older each time earth rotatesabout the sun.
5. on average, galaxies are getting farther apart with time, which is why we say our universeis expanding.
6. our solar systemis moving toward the star vega at about 70,000 km/hr.

Hello! Apparently, your question is incomplete. Those were sentences in which you had to complete with missing information, so here we go:

1- Our entire solar system orbits around the center of the MILKY WAY GALAXY about once every 230 million years.

2- The Milky Way and Andromeda galaxies are among a few dozen galaxies that make up our LOCAL GROUP.

3 - The Sun appears to rise and set in our sky because Earth ROTATES once each day.

4 - You are one year older each time Earth ORBITS about the Sun.

5 - On average, galaxies are getting farther apart with time, which is why we say our UNIVERSE is expanding.

6 - Our SOLAR SYSTEM is moving toward the star Vega about 70,000 km/hr.

b

step-by-step explanation: a third of 24 is 8, 8 times 3 is 24 so 8 - 2 would be 6

electromagnetic waves travel through space with vacuums. give me brainliest if right.