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515=0.21\times 10^{2}\left(0.1-42\right)
Multiply 0.2 and 1.05 to get 0.21.
515=0.21\times 100\left(0.1-42\right)
Calculate 10 to the power of 2 and get 100.
515=21\left(0.1-42\right)
Multiply 0.21 and 100 to get 21.
515=21\left(-41.9\right)
Subtract 42 from 0.1 to get -41.9.
515=-879.9
Multiply 21 and -41.9 to get -879.9.
\text{false}
Compare 515 and -879.9.
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