Answer:
3x5
Step-by-step explanation:
At first find the area of rectangle:
(x + 4)*(x + 1) = x^2 + 5x + 4
Then find the area of triangle:

Then you must do like this
Area of rectangle - Area of triangle = Area of the shaded
x^2+5x+4 - (

)
Step 1:
Convert the electricity per hour in kilowatts,
Electricity per hour = 20 watts
=20/1000 kilo,watts
Step 2:
The electricity consumes in 5 hour is ,
Electricity in 5 hour = 5x 20/1000 kilo watts.
Obtain the cost as,
=5x20/1000x10
=1 Cent
Answer: =1 Cent
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<em><u>Hope this helps.</u></em>
6 weeks.
The equation for each is:
68 + 5x
25 + 12x
To show work I reccomend making a table:).
I also reccomend usijg a graphic calculator if it is available.
If not then plug in numbers into the variables by using estimates.