Which composition of transformations maps JK to LM?    A. Translation along (x, y) -> (x-1, x+1) and reflection across the y-axis
B. Reflection in y-axis and translation along (x, y)-> (x-1, y-2)
C. Translation along (x, y) -> (x, y-1) and rotation 90º about the origin
D. Rotation 90º about the origin and translation along (x, y)->(x, y-1)​

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?