I think it’s C (decreasing) but i’m not 100% sure. the question is: “Mr Harris attaches a small tank of propane to his portable grill. Then he turns on the grill and cooks food for a barbecue. Which graph shows the relationship between the amount of propane in the tank and time?”

C

Step-by-step explanation:

What's happening in the real world?

As he cooks on the barbecue, the weight of the tank goes down  because some of the propane is getting used up.

Given that is happening, the graph showing that has to start with a lot in it and slowly decrease.

A shows the exact opposite. As he cooks, he gets more weight in the tank, not less.

B says that over time, there is no change in weight of the tank. How can that be? The tank ought to get lighter. The answer is not B

C is the correct answer.

what is all that apply?

you would need to know all the numbers that are on there

step-by-step explanation: