PLEASE HELP ASAP What is the first part of the second step to prove that Sn→1 + 4 + 7 + ... + (3n - 2) =

n(3n-1)/2?

a. verify that Sn is valid for n = 1

b. show that Sn is valid for n = k

c. assume that Sn is valid for n = k

d. prove that Sn is valid for n = k + 1

all group life insurance is term insurance. actually it is annual renewable term and it is rated on the average age and claims experience of the entire group, which is called "experience rating." remember, this type of insurance has a 31-day grace period and is convertible to whole life upon leaving employment. a contributory group plan requires that both the employer and the employees pay part of the premium. at least 75% of those eligible must participate, so the group is sure to get most of the healthy employees as well as those that are sick.

step-by-step explanation:

answer: x=3 and y=4

step-by-step explanation:

5 feet of chain cost $9

so the answer is 1.80

the equation is going to be