Omar earned $1.50 less than Lydia. Mia earned half as much money as Lydia. Let x represent Lydia's earnings. Which sets of expressions represent how much Omar and Mia earned? Select all that apply.
Omar: 1.5 - 1
0
Mia: 2
Omar. 1-1.5
Mia:
Omar I-1.5
Mia:
Omar. 1.5-2
0
Mia: 23
2x

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

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.