Find the approximate area of a circle if the radius is are my answer last correct this problem is worth 100 points if you answer it

3. solve by graphing: y = 2x + 6 x + y = -3

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?