Answer:
"Equations can be multiplied by a constant to allow for elimination by addition or subtraction. This process is called Elimination by Multiplication. We multiply the first equation by "2" to prepare it for elimination by subtraction. Now that we know "x", we can use this information to solve for "y"."
2 because for every 5 she gets she gives 2 to her brother and she only got one 5 so its 2
I believe Junnie walked further by 0.62 miles if this isnt correct sorry