In a paint factory, an old conveyer line has filled 16 barrels of paint, and is filling more at a rate of 5 barrels per minute. A worker just switched on a newer line that can fill 7 barrels per minute. In a little while, the two lines will have filled an equal number of barrels. How long will that take? How many barrels will each line have filled?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

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?