Ellen saver went to her bank. she had a balance of $2,447.67 in her savings account. she withdrew $231.49 and the teller credited her account with $36.61. what is her new balance?

$2,179.57
$2,252.79
$2,642.77
$2,715.77

Need on this one asap im almost done with this subject

Give all possible names for the line shown.calculation tip: lines can be written with either point first.

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?