James orders 50 m² of paving slabs. He paves an area of 28.5 m² and then paves a second area of 16.25 m².

How much of the paving slabs does he have left?

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.