The application for approval of a generic equivalent of an existing proprietary drug must show that the drug is absorbed from the liver into the bloodstream at the same rate as the proprietary drug.
287 centimeters is 112.992 inches
4 is the right answer. hope it helps
Find r :
C=2πr
280=2(3.14)r
r=280/2(3.14)
r=44.6cm
find area :
A=πr²
A=3.14(44.6)²
A=6246 cm²
Answer : 4)6,246