I believe the answer is 1.35 x10^14
Best way to convert measurements in the standard measurement system is to use the phrase "King Henry Died By Drinking Chocalote Milk"
K- Kilo
H- Hecto
D- Deca
B- Base (meter, liter, gram)
D- Deci
C- Centi
M- Milli
If you go up from the B, you move the decimal left, if you go down from the B, you move the decimal that many times to the right.
The picture will probably help explain better.
3) 10,640 g
5) idk which it needs to be converted to
7) 3,700 mg
If you are looking for the area of that, the answer would be 49 meters squared since in area, it is always length times width. 7x7=49. that answer would be 49 meters squared