Question

The nth term of a sequence is 12n -5. Work out the numbers in the sequence that have two digits and are not prime. Your final line must say Not Prime and list only the numbers that are not prime

Answer 1

Answer:

55 and 91 are not prime.

Step-by-step explanation:

$12(1) -5=7\\12(2) -5=19\\12(3) -5=31\\ 12(4) -5=43\\12(5) -5=55\\12(6) -5=67\\12(7) -5=79\\12(8) -5=91\\12(9) -5=103$