PLEASE PLEASE PLEASE HELP Rectangle EFGH is reflected across the origin and then rotated 90° clockwise about the origin, forming rectangle E″F″G″H″. What are the coordinates of rectangle E″F″G″H″?

(A.) E″ (1, –5), F″ (1, –1), G″ (4, –1), H″ (4, –5)

(B.) E″ (–1, –5), F″ (–1, –1), G″ (–4, –1), H″ (–4, –5)

(C.) E″ (–1, 5), F″ (–1, 1), G″ (–4, 1), H″ (–4, 5)

(D). E″ (5, 1), F″ (1, 1), G″ (1, 4),
H″ (5, 4)

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.