New orleans, louisiana, and memphis, tennessee, lie approximately on the same meridian. new orleans has a latitude of 30 degree n, and memphis has a latitude of 35 degree n. find the distance between these two cities. (the radius of the earth is 3960 mi. round your answer to the nearest whole number) mi this exercise involves the formula for the area of a circular sector. the area of a sector of a circle with a central angle of 120 degree is 75 m^2. find the radius of the circle. () 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?