#1**+3 **

a. 6 12 18 24

Not geometric because there is not a common * ratio b*etween terms

It appears the the common difference is 6

This leads us to believe that "C" might be correct

Check :

First term = 6(1 - 1) + 6 = 6

Second term = 6(2 - 1) + 6 = 6 +6 = 12 yep.....that's the correct one !!!

b. 2 14 98 686

We have a common ratio of 14 / 2 = 7 [ check GM that 98/14 is the same ratio ]

This is geometric

Pretty sure that "A" is correct

First term = 2 (7) ^(1 - 1) = 2*7^0 = 2

Second term 2(7)^(2 - 1) = 2*7^1 = 14

Yep.....that's correct, too

Well....not much mystery to

c. 160 80 40 20

Must be "B"

CPhill Apr 17, 2019