Registration- to sign up for something or to sign up for an event
Hope this helps!
As a side dish, you should plan on 1/2 pound of potatoes per person. That means if you are planning on 10 people, use 5 pounds of potatoes. 4 people, use 2 pounds of potatoes.
Its C because the x represents the amount of packages sold which applies to the 6 because its per package, same with the 2.