Answer:
The answer is a isosceles right I think.
L: 1750, M:1750-480=1270
Lisa gave some stamps to Mark so Lisa now has 1750-x and Mark has 1270+x. Mark also has 3 times as many as Lisa now: (1750-x)*3=1270+x
5250-3*x=1270+x
4*x=3980, x=3980/4, x=995
So Lisa gave 995 stamps to Mark.
At first Mark had 1270 stamps. Lisa now has 1750-995=755 stamps.
The correct answer is False.
Because each input must only have one output.
But an output can have more than one input.
Hope This helps!!!
So what is your question so I can have a answer for u