Exe.1
show 5 possible solutions for each statement:
a) the sum of 2 decimals is less than 1
b) the sum of 2 decimals is equal than 1
c) the sum of 2 decimals is greater than 1

exe.2
the difference between two decimalsis 6.33. what might the two decimals be? show 5 different solutions.

exe.3
i multiplied two numbers and got a product smaller than both factors. what might the two numbers be?

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?