exam Maths Puzzle Numerical Ability

Please help me Convert to logarithmic equations. For example, the logarithmic form of "23 = 8" is "log2 8 = 3".

a) 16 3/2 = 64

b) ex = 5

Please help me figure thest out.

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exam Other Question
(3 - 7i)(2 + 4i),firstly,you expand it.(this is complex number),
(6 +12i - 14i +28 ) = 34 - 2i.ans(note: i^2 = -1.so -7i x +14i =28)
SOLVED BY JAMES(A.K.A, BOMBARD) draw the solution graph of the system of linear inequalities
x-2y>4 < > underlined
x<4