PLEASE HELP ASAP!!!

Answer:
JM = 10
Step-by-step explanation:
Because MN║JL,
[tex]\frac{MK}{JM} = \frac{KN}{NL}[/tex]
[tex]\frac{5}{2x + 4} = \frac{6}{12}[/tex] = [tex]\frac{1}{2}[/tex]
2(5) = 1(2x + 4)
10 = 2x + 4
2x = 6
x = 3
JM = 2x + 4 = 2(3) + 4 = 6 + 4 = 10