Sally can paint a room in 4 hours while it takes steve 9 hours to paint the same room. how long would it take them to paint the
1 answer:
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1. No; it is not written as a number times the power of 10.
2. 1.22×10^9
3. 2.87×10^−2
4. 5000
5. is answered in attached picture.
6. 3.212×10^3
