If a taxicab charges x cents for the first 1/9 mile and x/5 cents for each additional 1/9 mile or fraction thereof, what is the charge, in cents, for a ride of y miles, where y is a whole number?
А) x + (xy-x)/45 В) x - (xy-x)/45 С) (2x+9y)/5 D) x + (9x-y)/5 Е) x + (9xy-x)/5
Вверх 
