the average distance between the sun and a certain planet is approximatly 2.1 10^15 inches. which of the following is the closest to the average distence between sun and the planet in kelometers? (1 km is approx 3.9 x 10^4 inches)  Choose the correct answer
A) 6.4 x(10)^10
B) 5.4 x(10)^10
C) 7.4 x(10)^10
D) 2.4 x(10)^10
E) 3.4 x(10)^10
No need to solve entire problem.   Distance in KM = 21*(10)^15/39*(10)^4 which is -210*(10)^14/39*(10)^4 = 5.4 x(10)^10   Answer : 5.4 x(10)^10
<result>B</result>
the average distance between the sun and a certain planet is approximatly 2.1 10^15 inches. which of the following is the closest to the average distence between sun and the planet in kelometers? (1 km is approx 3.9 x 10^4 inches)