Will give a brainlest an important characteristic of the earliest permanent human settlements was that they were established near rivers predators were eradicated infant mortality was almost unknown gathered food was stored

The answer is D) gartherd food was stored. Good luck! (Gradpoint)

1. (1.2kw)x(15/60hours) = .3kwh --> a

2. (5kw)x(90/60hours)x(8cents/kwh) = $0.60 --> d

3. microwave --> 1200 watts = (1.2kw)x(6/60hours) = .12kwh

coffee-maker --> 900 watts = (.9kw)x(10/60hours) = .15kwh

therefore, it requires more energy for the coffee-maker to do the same amount of work.

so the answer is a.

the denominator has a very specific role.