What are some differences and similarities of dilations and translations?

Simplify -4z+2y-y+-18z a.-22z+y b.-14z+2 c.3y+22z d.y +14z

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.