1. Write the following in roster form, (a) A = {x – 2 = 5}
(b) B = {x2 – X – 2 = 0}
(c) C = {x 1x = 4m, m E N and m <3}
2. Write the following in set builder notation,
(a) Let A consist of the letters a, b, c, d and e
(b) Let B = {4}
(c) C = {-V2.2
(d) D = {10,15,20,25,30}
3. Which of these sets is the null or singleton se
(a) A={x] x is a letter before a in the alphal
(b) B ={ x| x2 = 9 and 2x = 4}
(c) C ={x| x + x)
(D = x​

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

Max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.