Question

Which phrase describes the pattern? 1, 7, 19, 43...Question 2 options: add 6 ,multiply by 3 and then add 1 multiply ,by 3 and then add 4 ,multiply by 2 and then add 5

Answer 1

answer 
multiply by 2 and then add 5

1 x 2 + 5 = 2+5 =7
7 x 2 + 5 = 14 +5 = 19
19 x 2 +5 = 38 +5 = 43