Karen walks from home at a speed of 5km per hour. she takes 12 min to reach home. what is the distance between the school and home?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Combine like terms to make a simpler expression 3z+z

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.