exam Maths Puzzle Numerical Ability

please help me with the following

simplify

4^-2m*m*m^0(m^-3p)^-3 / (m^3p^-1)^3 * m*p*p^-4

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exam Other Question

Please Help!!!

Solve...
1. -9(x-3)^2=-7
2. (x+4^2=3
3. 5(x-2)^2=3

Thanks In advance!!!
Can you please help me with this. I do not understand how to do this.

Suppose that x has a distibution with u = 72 and o = 8.
if random samples of size n = 16 are selected, ca