How many different words can be formed with the letters BBCCD (not necessarily meaningful words)? Please help me with this. Other answers did not work.

Sasha invests $1000 that earns 8% interest compounded annually. write a function that describes the value, v, of the investment after t years.

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?

I'll give brainliest if you answer right : )