Please help me I have posted this question so many times and nobody could help I’m dying please. You need 5 to answer 6 and you don’t have to do the yes ma’am just explain to me if Lucy is correct or incorrect.

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

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)