Given the figure below find the values of x and z

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

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?

Which is a graph of a proportional relationship?