Which one of the following is not explain why 2x+3y does not equal 5xy a. if you substitute 4 for x and 5 for y in the expression 2x+3y, it does not equal 5(4)(5). b. since 2 and 3 are factors, they should be multiplied to get 6xy. c. x and y are not like terms. d. adding x and y is not the same as multiplying x and y.

Select the correct answer from each drop-down menu. the length of a rectangle is 5 inches more than its width. the area of the rectangle is 50 square inches. the quadratic equation that represents this situation is the length of the rectangle is inches.

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?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?