factorise 75^2 - 8 (4) - 25x^2 please include the steps you used, will give brainliest ! thanks in advance :)

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

The number of branches on a tree demonstrates the fibonacci sequence. how many branches would there be on the next two levels of this tree? 13 | | | m branches