How do I do this this is due tomorrow please I need help

Ineed to know the answer to this algebra question.

For a research project in a political science course, a student has collected information about the quality of life and the degree of political democracy in 50 nations. specifically, she used infant mortality rates to measure quality of life and the percentage of all adults who are permitted to vote in national elections as a measure of democratization. her hypothesis is that the quality of life is higher in more democratic nations. read this research description carefully. pay attention to the following: how many variables are in this research? what is the scale of the variable for infant mortality? p1c4. what is the dependent variable in this research problem? p1c4. is this research descriptive or inferential? does this research involves single variable analysis or two or more variable analysis?

Asystem of equations is given below. y= 1/2x-3 and y=-1/2 x-3which of the following statements best describes the two lines? a. they have the same slope but different y-intercepts, so they have no solution. b.they have the same slope but different y-intercepts, so they have one solution. c.they have different slopes but the same y-intercept, so they have no solution. d.they have different slopes but the same y-intercept, so they have one solution. html