Each sunday, mario weighs himself. here are his weight changes over a 4-week period.

week: 1 2 3 4
weight change
(in pounds) -2.1 0.3 -1.7 -0.4

adding decimals how much has mario’s weight changed over the entire 4 weeks?

a. –3.9 pounds

b. 5.4 pounds

c. 3.2 pounds

d. –4.1 pounds

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Which number line represents the solution set for the inequality - x 24?

Proportions in triangles solve for x