Please help. I don't care about the points.

Lilianna uses 3/4 calories per minute just by sitting. she uses 1 more calorie per minute by walking. lilianna uses a total of 12 1/4 calories walking to the park. lilianna uses the equation, d(.75+1)=12.25 to represent the situation. what does the variable d represent in the equation?

Need on this geometry question. explain how you did it.

How much orange juice do you need to make 2 servings of lemony orange slush?