Answer:
A
Step-by-step explanation:
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The first step would be to isolate a variable (solve for a variable)....so u will have something to sub into the other equation
You have to subtract 5x since its positive bring it to the other side then divide with negative one with everything which you get you y = 5- 5x
the slope is five over one
the y intercept is 5
Just like you drew those dotted lines. You know how to find the areas of rectangles which is A=length x width
The answer would be 20cm^2+6cm^2+18cm^2=44 cm^2