Jen buys a bag of cat food containing 25 cups of food. Her cat eats 1/2 cup of food each day. If r is the amount of food remaining and d is the number of days since Jen bought the bag of food then the amount of food remaining is given by the equation r=25-0.5d which variable is the dependent variable

r

Step-by-step explanation:

The variable r is the dependent variable in the expression.

The value of r will depend on the value of d. The variable d will not affected even if you change the value of r.

The variable r will change depending on the value of d.

So in conclusion, the value of r will only change depending on the value of d.