For what value(s) of k will the equation 4x2 + kx + 9 = 0 have only one distinct solution?

What properties allow transformation to be used as a problem solving tool

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.