If increasing 15 by n% is equivalent to decreasing 75 by n%, then what is 6% of n?

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

The graph of a curve that passes the vertical line test is a:

Asequence is a function whose is the set of natural numbers