A carton has a length of fraction 2 and 2 over 3 feet, width of fraction 1 and 1 over 3 feet, and height of fraction 1 and 1 over 2 feet. What is the volume of the carton? a 4 cubic feet
b fraction 5 and 1 over 3 cubic feet
c 6 cubic feet
d fraction 6 and 1 over 3 cubic feet

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

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 geometric principle is used to justify the construction below?