Connie and Chris are saving money to go to a concert. Each friend starts with some money and saves a specific amount each week. Connie wrote an equation to show the total, y, she has saved at the end of each week, x.

y = 6x + 9

Chris made a graph to show the total he has saved at the end of each week.

Compare the amount that each friend has when both friends start saving.

Select the correct answer from the drop-down menu to complete the statement.

Chris starts with $

Choose...

and Connie starts with $

Choose...

.

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