Use the results of Exercises 22 and 23 to make a conjecture about the relationship between the scale factor of a drawing and the ratios drawing perimeteractual perimeter and drawing areaactual area. The ratio of the perimeters is . The ratio of the areas is .

Піf x = y and y= z, which statement must be true? оа. -x = -2 b. x= z ос. —x = 2 od. 2= x

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

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?