Paige asked 30 random students in her school if they use the internet to with homework. of these students, 18 students said they do use the internet to with homework. based on the results of this survey, how many of the 480 total students in paige’s school could she predict use the internet to with homework?

a: 144
b: 230
c: 288
d: 320

Given abcd ac=38 and ae=3x+4 find the value of x

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?

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x