90 mins later we had to go to sleep for sub for two other people that were not
-- For just a minute, make it an Equality . . . y = x + 2 .
-- Graph the Equality. That graph is a straight line.
-- The INequality says that 'y' is LESS than x+2,
and THAT's everything UNDER the line.
(But not the points on the line itself.)
In both a percentage is taken of the money but in the discount the money taken off while in the sales tax money is added.
-9x(5-2x)
What does the second two mean?
