Does change occur by diffusion or independent invention? How?

The cultural diffusion theory believes that while independent invention can account for some of the similarities cultures share, the majority of them are the result of different ideas, religions, languages, myths, traditions, and other aspects of culture being passed from one group of people to the next like germs

Explanation:

The answer is the explanation

1.3x - 2 - (3.3x + 5) = 2x + 1

1.3x - 2 - 3.3x - 5 = 2x + 1

-2x - 7 = 2x + 1

-7 = 4x + 1

-8 = 4x

x = -2

answer; (a) he was a u.s senator for 38 years;