Kelvin foo's answer to Tan Cheryl's Secondary 3 A Maths question.

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Kelvin foo
Kelvin Foo's answer
97 answers (A Helpful Person)
1st
Shld be 73.5 since you cant log a negative number.
Tan Cheryl
Tan Cheryl
6 years ago
Nothing seen
Tan Cheryl
Tan Cheryl
6 years ago
-3.55 is rejected