Answer:
5.07×10⁵ dollars
Explanation:
You want to know the sum of 5×10⁵ and 7×10³.
Scientific notation
Numbers can be added when they are written in scientific notation if they are expressed with the same exponent.
5×10⁵ +7×10³ = 5×10⁵ +0.07×10⁵ = 5.07×10⁵
The current balance is 5.07×10⁵ dollars. That is $507,000.
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Additional comment
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