Me on this and show me the steps to the answer.

An energy plant is looking into putting in a system to remove harmful pollutants from its emissions going into earth's atmosphere. the cost of removing the pollutants can be modeled using the function c = 25000p/100 -p what is the vertical asymptote?

Ihave trouble finding the nth term of a linear sequence

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle