Please help with this ;-;

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

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?

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0