Please help fast The figure is made up of a hemisphere and a cylinder.

What is the exact volume of the figure?
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Cylinder laying horizontal, hemisphere at right side. Height of cylinder equals 8 inches. Diameter of cylinder equals 6 inches. Diameter of hemisphere equals 6 inches.

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?