Plz help quick The problem is
A flower shop sells bouquets in a basic arrangement and and in a deluxe arrangement. The table shows the sales of each type for d days

The Table
Basic arrangement 17$ number sold 8d-7
Deluxe Arrangement 25$
Number sold 3d+6

Write an expression that represents the difference between the number of basic arrangements and deluxe arrangements sold

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