exam Maths Puzzle Numerical Ability

three fourths the number b is 96.

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exam Other Question

Another I have to turn in and I am still having trouble with. HELP!

Write the expression in terms of the logarithms of x and y:

log 5x^2/square root of y

y is under a square root symbol. Hope that is clear enough. Thanks!
Consider g(x) = x^n + 4x^n - 1; what is the maximum number of turns it can have?
@ The maximum number of turns = n – 1.
a. n – 2
b. n – 1
c. n
d. n + 1