Answer:
The cost of one unit of electricity is $0.185
Step-by-step explanation:
Amount charged = $120.99
Units of electricity used = 654
The cost of a unit of electricity can be determined by dividing the amount charged by the number of units used.
So that,
cost of one unit of electricity = 
= 0.185
cost of one unit of electricity = $0.185
This implies that the cost of electricity used is charged at $0.185 per unit.
Thus for 654 units of electricity used, the cost would be;
654 x $0.185 = $120.99
Although the graph is not given in the option, so I would consider it from a different graph with the same question. The graph that represents the area of each rectangle in terms of the change in the length and width is the one with coordinate points located on the grid. The coordinate points on the form of (x,y) are represented as:
1. (0,40)
2. (1,45)
3. (2,47)
4. (8,25)
Hence,The graph with these coordinate points will be representing the situation.
Answer: 9.4
Step-by-step explanation:
Here the x-coordinates and y-coordinates have the inverse relation.
⇒ 
⇒ 
Where k is variation constant.
Since, point (9.4, 11) is from the inverse variation,
Therefore, this point must be satisfy the above condition,
That is, 

Thus, the relation between the coordinates is,

Put x = 11, in the above function,


Answer:
D is the right answer
Step-by-step explanation:

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