math
posted by Sara! on .
i don't know get this question
1. last saturday emily rented 4 movies from the video store. this saturday she rented 2 movies. let x represent the cost of renting each movie. write and simplify an expression for how much more emily spent last week renting movies?
2. if it costs $4 to rent each movie, how much more money did emily spend last week renting movies?

1.
4x  2x =
2x =
2.
4(4)  2(4) = $8