A movie theater sells popcorn in bags that open to form similar prisms, the height of the smaller bag is 12 while the height of the larger bag is 16. The large bag has a volume of 576 cubic inches. What is the volume of the small bag? A. 144 cubic inches
B. 243 cubic inches
C. 324 cubic inches
D. 432 cubic inches
E. cannot be determined

Aresearch study is studying the effects of a new drug for osteoporosis alzheimer's disease (ad) for women above the age of 65 years. a group of individuals with osteoporosis is randomized into two groups. one group is treated conventionally, and the second group is treated with the new medication. assessments are made at 3, 6, 12, 36, and 48 months. the conventionally treated group is assessed for ad using a serum blood test, and the treatment group is assessed for ad using a pet radiotracer that binds to beta-amyloid plaques. in comparing these 2 trial arms, the authors of the study may encounter which type of bias? a. selection bias on the risk of developing b. measurement bias c. confounding bias d. recall bias e. lead-time bias