you have 3 times as many pencils as your friend , if you have 21 pencils how many does your friend have ?
2 answers:
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We are given this explicit formula :
In order to find eighth term let us plug n as 8 in this formula:
subtracting 8-1 first using pemdas rule
multiplying 5 and 7
subtracting 35-6
c(8) = 29
So eighth term is 29.