Can someone give me the answer to 11-18 .

Write 17/20 as a decimal and as a percent.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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?