Using the unpaid balance​ method, find the current​ month's finance charge on a credit card account having the following transactions. Last​ month's balance: ​$555
Last​ payment: ​$80
Annual Interest​ rate: ​21%
​ Purchases: $678
​ Returns: ​$813

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

The equation line of cd is y=-2x-2. write an equation of a line parallels to line cd in slope-intercept form that contains point (4,5)

Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias