According to a study, one dash fifth of all rough diamonds produced in one region are blood diamonds. Also, 88% of the region's rough diamonds are processed in City X, and of these diamonds, one dash fourth are blood diamonds. a. Find the probability that a rough diamond produced in this region is not a blood diamond. b. Find the probability that a rough diamond is processed in City X and is a blood diamond.

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?

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?

Which of the following graphs could represent a quartic function?