The minimum pressure exact can be exerted by a block of wood weight 2 kg​

Natasha spent 1 1/2 hours on the beach. she fell asleep for 3/4 of the time she was on the beach and then woke up with a terrible sunburn. how many hours was natasha asleep on the beach?

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall