The price of an item has risen to $387 today. Yesterday it was $180. Find the percentage increase.

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

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.