Jerome got in the elevator on the first floor of his office building. He went up 20 floors to his office. Then, Jerome took the stairwell down 3 floors for a morning meeting. After the morning meeting, he took the elevator down 7 floors for lunch in the cafeteria. Then, Jerome took the stairwell up 5 floors for an afternoon meeting. On which floor was his afternoon meeting?
A.
twenty-second
B.
sixth
C.
sixteenth
D.
thirty-sixth

What is the inverse of the function f(x) = 2x + 1?

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters

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