HELP ME FAST PLZ!! SYSTEMS OF EQUATIONS/INEQUALITIES: Label each part of your answer.

Part A: Identify the solution to the system that is graphed below. Justify your answer. (2 points)

Part B: A system of equation is given below:
y = -5x - 1
y = mx + 3
Find the value of m, so that there is no solution to the system. Justify your answer. (3 points)

Part C:
Write a system of inequalities that would produce the graph below. (5 points)

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Which of these tools or constructions is used to inscribe a hexagon inside a circle?