The answer is D interferometry
Answer:
2k
Explanation:
100W X 10h = 1000Wh = 1KWh thus cost is 2k
Growing and being able to pollen
6 and 
Explanation:
The expression:
6a - 
A coefficient is a numerical constant usually placed before a variable in an expression.
They are used to multiply variables.
Given equation is;

There are two variables in this expression which are;
a and - b

The coefficients in this expression are:
6 and 
learn more:
Quadratic equation brainly.com/question/1357167
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