or uploading a single PDF file. Determine the practical domain and range for this function. 4500 - 4000 + Cigarette Consumption :: The number of cigarettes 3500 + consumed by adults over the age of 18 in the United 3000 + States, c, is a function of the years since 1990, t, and is 2500 Cigarettes Per Capita given in the following graph. 2000 1500 1000+ 500 + 10 20 30 40 50 60 70 80 90 100 Years Since 1900