Help meh please TwT also for da fellow weebs and undertale, fnaf, gravity falls, and mha fans, heres some wholesome ships :3

(also the arts not mine they go to their respectful owners)

Ineed to know the answer to this algebra question.

How many grams the dog will eat in 3 days?

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.