Amarketing firm is studying consumer preferences for winter fashions in four different months. from a population of women 18 to 21 years of age, a random sample of 100 women was selected in january. another random sample of 100 women was selected in march. another random sample of 100 women was selected in june. another random sample of 100 women was selected in september. based on this information, what is the sample size?
a) the sample size was 4.
b) the sample size was 100.
c) the sample size was 400.
d) the sample size was 1.

Subtract and simplify. (-y^2 – 4y - 8) – (-4y^2 – 6y + 3) show how you got the answer if your answer is right i will mark you

Look at this system of equations. -3x + 3y = 12 y = x + 4 the solution set of this system is best explained by which of these statements? a) the graphs of the equations are the same line because the equations have the same slope and the same y-intercept. the system has infinitely many solutions. b) the graphs of the equations are parallel lines because they have the same slope but different y-intercepts. the system has no solution. c) the graphs of the equations are lines that intersect at one point because the equations have the same slope but different y-intercepts. the system has exactly one solution. d) the graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. the system has exactly one solution.

Can anyone me with this question?