Round 1964.15569 to the nearest hundredth, tenth, one, ten, and hundred.

Can you me find the missing length. i attached an image.

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

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?