12, 14, 16, 18, 20, . . .
Which expression represents the number in the pattern, where p is the position of the number in the pattern?
ap = 2 ( p + 5 )
a1 = 2 ( 1 + 5 ) = 2 * 6 = 12
a2 = 2 ( 2 + 5 ) = 2 * 7 = 14
s3 = 2 ( 3 + 5 ) = 2 * 8 = 16
a4 = 2 ( 4 + 5 ) = 2 * 9 = 18
a5 = 2 ( 5 + 5 ) = 2 * 10 = 20