A company sells bikes that are light and fast. The revenue earned over a period of x years can be represented by the function, . The cost of manufacturing the bikes can be represented by the function, . Which function, , describes the profit earned from the sales of the bikes over a period of x years?

Aplot of land in the shape of a vertical ellipse has a pole at each focus. the foci are 8 feet from the center. if the plot of land is 34 feet across the vertical axis, then it is (a.24 b. 30 c. 32 d. 36) feet across the other axis. the eccentricity of the ellipse traced by the boundary of this plot, rounded to the nearest thousandth, is (a.0.543 b.0.515 c.0.471 d. 0.459)