book Maths Puzzle Numerical Ability

what are these things i can never get them right??

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book Other Question

please help simplify and solve the inequalities
4(5x+1)>3(3x+5)
HELP!!! I have to write the logarithmic equation in exponential form. For example, the exponential form of "log5 25 = 2" is "52 = 25".

The 3 after log goes small...as if it was an exponent but to the bottom.

log3 27 = 3