In addition to fuel and maintenance, Rachel pays $1000 per year for insurance. The equation C=(.05+.14)x +1000 shows the cost C, in dollars, of owning and operating the car for a year when it is driven x miles during that year. a) What does the (.05 +.14) represent in this equation? b) If Rachel drives 15,000 miles in the year, what is the cost of owning and operating that car?