The nth term of the sequence is 12n-5
Work out the numbers in the sequence that
have two digits
and
are not prime
Answers
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1
Answer:
55 and 91 are not prime.
Step-by-step explanation:
12(1)−5=7
12(2)−5=19
12(3)−5=31
12(4)−5=43
12(5)−5=55
12(6)−5=67
12(7)−5=79
12(8)−5=91
12(9)−5=103
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