Anyone know this? having trouble with this one : / , would be appreciated

Notice the y-axis scale is 100 for every square, starting at 50.

and the x-axis scale is 1.

for every 1 over "x", "y" goes up 100 units.

for every "something" on "x", you get 100 "something" on "y".

all the scenarios have their likelyhood in that graph, so the graph more or less works for all of them.

now, the one I'd go as most likely is,

a salad that from the getgo has 50 calories, if you add more dressing, you're adding 100 calories for every ounce of dressing.

for every oz over the x-axis, the calories go up by 100 more on the y-axis.

the barbell is not very likely because noone will lift 500lbs.

the puzzle is not likely, because puzzles do not come with bundles of 100 pieces as additions to it.

the money is not likely because the register may have 50 bucks at the beginning, but if the axis were to list the 100 dollar bills, it'd not start at 50, and if it were to list change in the register, it most likely wouldn't not go by jumps of 100.