Which was the first cell viewed by the light microscope?

cork cells

, when they were observed the person who did it proclaimed they looks like desk cells because cork cells are dead and empty are just rectangles. This is how the name cell was orginated

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.

your answer should be c) enjoy!