Help please! Will give Brainlist if you give math process and good explanation! If f(x) is a linear function, what is the value of n?

Give me the equations of two lines that have the same slope but are not parallel.

Which ordered pair is a solution of the equation? y + 5 = 2(2+1) choose 1 answer ® only (5,10 ® only (-1,-5) © both (5, 10) and (-1,-5) 0 neither

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.