Answer:
12 years younger.
Step-by-step explanation:
Let Jan's age be J and Karyn's age be K.

Jan's age 8 years ago is 2/5 of Karyn's age 4 yeaRs from now.

=> 
=> 4K = 48 X 3
=> K= 36.
=> J= 24.
So Jan is 12 years younger.
the solution is where the line cross on the y axis, which is on 0
so y = 0
Yes, because it can be expressed as the quotient or fraction of two integers you
Answer:
Check image
Step-by-step explanation: