PLEASE PLEASE PLEASE HELP ASAPP Question: In the movie Lincoln Lincoln says "Euclid's first common notion is this: Things which are equal to the same things are equal to each other. That's a rule of mathematical reasoning and it's true because it works - has done
and always will do. In his book Euclid says this is self-evident. You see there it is even in that 2000 year old book of mechanical law it is the self-evident truth that things which are equal to the same things are equal to each other."
Explain how this common notion is an example of a postulate or a theorem

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?