Answer:
Step-by-step explanation:
The shaded area is the difference of areas of the rectangle and the square.
<u>Rectangle:</u>
<u>Square:</u>
<u>Shaded region:</u>
area of shaded region: x² + 23x + 49
<u>solve</u>:
Area of full rectangle:
Area of un-shaded rectangle:
Area of shaded = Area of full rectangle - Area of un-shaded rectangle
$25 >= 14.99+2.75x
8 hours
5 - 1 = 4 grams
10% of 5 = 0.5 grams per hour
4/0.5 = 8 hours
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