Question

NEED YOUR HELP WITH THIS!!

Answer 1

the tenth term is 100: 10,20,30,40,50,60,70,80,90,100

the fourth term is 12: 4,6,8,12

the third term is 1/2: 1/8,1/4,1/2

i really don't know how to explain. i don't know if i am correct but i tried