We need to know some log properties
1. when the base is not stated, assume that it is base 10 or log₁₀
2.
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-log(10^-1)=
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answer is D. -1
The answer is 4+8+16+32+64+128+256+512+1024: This is equivalent to 2044
Your answer would be 4 you go with P.E.M.D.A.S so (5-1)= 4 then 4+4=8-4=4