You would start by finding the area of the circle and then finding the area of the rectangle. After finding both, subtract the area of the rectangle from that of the circle. <span />
Answer:
4(x + 3) / 4x + 12
Step-by-step explanation:
the image linked is showing 4 green whihc means 4x and 12 squares so I multiply 4 x 3 whihc is 12
The following formula is used to find the answer.
D = 50 mg (0.6^n)
D is the dosage
n is at any hour
Using this formula and solving the equation for it, the answer is 18.