Astone is an english measure of weight. there are 14 lb in 1 stone and 2.2 lb in 1 kg.
a certain person weighs 9 stone.
if you wanted to convert the person’s weight to kilograms, what conversion factor should you use?
show your work.
what is the person’s weight in kilograms?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?