When dragons on planet pern lay eggs, the eggs are either green or yellow. the biologists have observed over the years that 19% of the eggs are yellow, and the rest green. next spring the lead scientist has permission to randomly select 47 of the dragon eggs to incubate. consider all the possible samples of 47 dragon eggs?

"a scientist studying a whale and its surroundings would need to understand the structure of atoms in case something was negatively affecting the whale or its surroundings."

explanation:

this was from the link provided:

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.