1. The base of a triangular pyramid has a base of 4 inches and a height of 3 inches. The height of the pyramid is 5 inches. Find the volume of the pyramid. 2. The base of a triangular prism is a right triangle with a base of 6 inches, a height of 8 inches, and a third side length of 10 inches. The height of the prism is 14 inches. Find the surface area of the prism.

3. The base of a hexagonal prism has an area of 82 square inches. The height of the prism is 4 inches. Find the volume of the prism.

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Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?