Correlation of a scatter plot question in image

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?

Which of the following are parts of a sphere

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why