How do I convert -15 4/9 to a decimal?

Is the response to the survey question "did you smoke in the last week question mark "response to the survey question "did you smoke in the last week? " a discrete random variable, a continuous random variable, or not a random variable?

Agatorade cooler has 36 cups of water. if a serving is 3/4 of a cup how many servings are in the cooler?

The graph of f(x), shown below, has the same shape as the graph of g(x)=x^2,but is shifted up 2 unit.what is the new equation?