It costs the school band S dollars per sandwich that they make. The band sells each sandwich for 20%, percent more than it costs to make so they earn a profit. The expression 73(S+0.2S)73(S+0.2S)73, left parenthesis, S, plus, 0, point, 2, S, right parenthesis describes how much money the school band received selling sandwiches at their last fundraiser. Match each amount in the situation with the expression that represents it.

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