The value of (7x10^7)(7x10^8) is closest to which of the following?  Choices:
A) 10^11	B) 10^12	C) 10^17	D) 10^14	E) 10^18
multiplying these we get,   49 x 10^7 x 10^8   = 4.9 x 10^16   which is closer to 10^17   Answer: 10^17
<result>C</result>
The value of (7x10^7)(7x10^8) is closest to which of the following?