Does the structure of the Rock change as it transforms into a
Metamorphic Rock

Yes

Explanation:

The new conditions cause the structure of the rock to change and new minerals to grow in place of the original minerals. The rock becomes a metamorphic rock.

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.

c. the initial amount of money placed in the savings account