Ineed the working out and i will give brainlist

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

Chandler was a caretaker at the state zoo. he noticed that the number of animals adopted by the zoo increased at a constant rate every year since 2010. which of the following graphs shows the slowest rate at which the animals in the zoo were adopted?

1. are the triangles similar and if so why? what is the value of x? show your work.