PLEASE HELP
How do you write the set notation for the graph below

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)