Help please almost to class end please help me

Determine the volume of a cylinder bucket if the diameter is 8.5 in. and the height is 11.5 in.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2

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?