If you take a certain number and write a 9 to the right of it and add the doubled certain number to the result, the sum will be equal to 633. Find the certain number.

You are looking for your first credit card. you plan to use this credit card only for emergencies and to pay the credit card balance in full each month. which credit card feature is most important? a. no annual fee b. low apr c. generous rewards program d. no balance transfer fee select the best answer from the choices provided