Water runs from a hose into a bucket at a steady rate. The amount of water in the bucket for the time it is being filler is shown in the graph . the point (12,5) is on the graph. what do the coordinates tell you about the water in the bucket ?? PLSS HELP IM SO STUCK .

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.