exam Maths Puzzle Numerical Ability

How would you write ln0.2=-1.6 in exponential form and how would you make e^-4=0.0183 into a logarithmic form?

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exam Other Question

Factor. Check by multiplying the factors. If the polynomial is not factorable, write prime.

72-17z+z^2 Mr. Agustin bought a color TV set worth P8,680, a washing machine for P6,850 and an electric fan for P1,060. If he was given an 8% discount, how much did he pay?