Sketch and label the net of the following solid figures, and label the edge lengths.
a. a cereal box that measures 13 inches high, 7 inches long, and 2 inches wide
b. a cubic gift box that measures 8 cm on each edge
c. challenge: write a numerical expression for the total area of the net in part (b). tell what each of the terms in your expression means.

Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias