the profit function of a small business can be expressed as p(x)=-x^2+300x, where x represents the number of employees

Which of the functions below could have created this graph?

Name two numbers whos difference is -3

Given the following point on the unit circle, find the angle, to the nearest  tenth of a degree, of the terminal side through that point, 0≤θ< 360. p=([tex]\frac{ \sqrt{10} }{4} [/tex]