At a bike shop, kirby is buying a new bike that costs
$315. the sales tax rate is 6%,
how much tax will he pay?
what is the final cost of the bike?

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?

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?