Astronomers deal with objects in space, so it's most likely they would use geometry to determine how far they are, how big they are, etc.
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Answer: Here is the explanation. also it it +3y not -3y
Step-by-step explanation:
x+y+4+2y+1=x+3y+5 because
2y+y=3y
so now you have x+3y+4+1
4+1=5
now you have: x+3y+5
if you do not understand, What i am trying to say is, you need to add all of the same things.
Answer: the answer is 48 feet
Step-by-step explanation: 24+ 12+ 12=48
Y=-2/3x-5
i think is the answer
