Gabriela believes that purchasing the sound system is an essential purchase . Does that mean buying a sound system is an essential purchase for everyone ? Why or why not ? Be sure to use the terms essential " and " discretionaryin your response.

the answer to the question is a  

it has the same slope and the same y-intercept.

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step-by-step explanation:

127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.