Your supervisor sends you to the truck for 180 feet of electrical wire. when you get there, you find that the coils of wire come in 15-foot lengths. how many coils of wire will you need to bring back

The total amount of wire in feet divided by the 15-foot lengths. 

What is 180 divided by 15? 
Can you finish?

If you are talking about typical sand you would find at the beach or in a river bed here on earth, there are some differences. i would say the first biggest difference is in composition and mineral make up. although the moon is largely made of the same materials as earth’s mantle and surface, the moon experiences very little weathering (no liquid water and virtually no atmosphere). “earth” sand is typically composed mostly of quartz grains. this is because quartz is highly resistant to both physical and chemical weathering. most of the other minerals originally with the quartz are broken down into fine clay and carried away, chemically eroded/ dissolved, or some combination of the two. this usually leaves only the quartz behind, and so most of the time when you see/think of sand, you are talking about quartz. without these weathering mechanisms on the moon, the “sand” (which is likely more silt or clay sized grains anyways) would consist of mostly other minerals like anorthosite, olivine, and proxene.

: )

I'm pretty sure illustrators are often represented among the staff of an advertising agency