Acell phone battery uses 1/3 of its charge in 3/8 of a day. how much charge will it use in one day?

Which function is represented by the graph

In the film, zeke the zombie slayer versus the zombies from space, zeke slayed 140 zombies. in the sequel, zeke the zombie slayer versus the zombies from space, part 2, he slayed 5% more zombies. how many zombies were slain by zeke in the sequel?

Consider the function f(x)=-5x+3 what is f(-2)