Answer:
square kilometers
Step-by-step explanation:
The surface area of a sphere can be found using the formula
. Since the diameter is 3500 km then its radius is half of this. 3500 divided in two is 1,750 units. Substitute r=1,750.

The surface area of the moon is about 38,465,000 square kilometers. Write this is scientific notation using base. 
Answer:
It is 18 because if you look at the side the small one says 3 the big one says 6 so if you multiply the 9 square feet by 2 thats your answer
Yes you should. When using a system
Answer:
20,000
Step-by-step explanation:
400,000 Digit 4
20,000 Digit 2
5,000 Digit 5
600 Digit 6
<u>+ 90</u> Digit 9 (And 0)
425,690