Afair die is rolled repeatedly. find the expected number of rolls until all 6 faces appear.

Agiven line has the equation 2x + 12y = −1. what is the equation, in slope-intercept form, of the line that is perpendicular to the given line and passes through the point (0, 9)? y = ( )x + 9

What is the inverse of the function f(x)=4x+8

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2