Element X is a radioactive isotope such that every 26
years,
its mass
decreases by half. Given that the initial mass of a sample of Element X is 680
grams, how much of the element would remain after 19 years, to the nearest
whole 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