If it takes 20 minutes for 5 people to paint 5 walls.
how many minutes does it take 9 people to paint 9 walls?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

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