Amath test is worth 100 points and has 30 problems. each problem is worth either 3 points or 4 points. how many 4 point problems are there?

What is the total area of the figure?

Indicate the formula for the following conditions: p^c(n,r)=

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?