Apackage of 5 insulation socks cost $31.95. what is the unit price of the pairs of socks

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2

Solve for x where 0 equation: cot^2x+2cotx+1=0