|-9c|=8 and solve for c

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

5x−4≥12 or 12x+5≤−4 can you with this problem

Which graph represents the linear function below? y-3=1/2(x+2)