Gabriela believes that purchasing the sound system is an essential purchase . Does that mean buying a sound system is an essenti
al purchase for everyone ? Why or why not ? Be sure to use the terms essential " and " discretionaryin your response.
1 answer:
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Answer:
Step-by-step explanation:
we know that
The formula to find the sum is equal to
where
a1 is the first term
an is the last term
n is the number of terms
In this problem we have
substitute the values in the formula