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Answer:
Jac is 6
Step-by-step explanation:
Jill= J
Jac = 3J
Jon 3(3J) = 9J
Jon is 16 yaers older than Jill
9J - J = 16.
8J = 16
J = 2 (Jill is 2)
Jack : 3x2 = 6 Jack is 6
Jon :3X6 = 18 Jon is 18 (16 years older than Jill)