Help please, with explanation

3rd option

Step-by-step explanation:

A porportional relationship can be described by

where x is the number of days, y is the amounts of food and k is the constant rate. (for this instance)

Looking at Classrom B, the amounts of food and cinstant rate isn't porpotional. Soxthat eliminates B and D.

For the 3rd option, the food amount is porportional as x increases. The unit rate here is 1,9 so the correct option is the 3rd option.

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (

i think the answer is d im not sure