The half-life of carbon-14 is about 5700 years. If you left those 100 carbon-14 atoms to sit around for 5700 years, how many would you expect to decay during that time?

Match each financial concept with its correct situation time value of money store of value personal disposable income consumer credit angela chooses between having $1,000 now, and investing it in a savings account so that she can have $1,050 a year from now. jane has $2,500 monthly to spend after she pays taxes david saves his money for the future so he can live comfortably in retirement lester uses a credit card to purchase a new ipad, as he cannot pay the entire amount now um. all rights reserved. there to search

Which of the following is not permitted in a roundabout? a. using your turn signal b. following the rules of right-of-way c. driving at the speed limit d. changing lanes

Which of the following is an open question? "where are you from? " "when did you graduate from college? " "why did you leave your last job? " "do you have transportation to work? "