The Williamson's went to dinner at the Olive Garden. If their dinner cost $42.00 and they paid a total of $49.56, what percent of the dinner cost represents the tip?

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

{0,1,2,3,4,5,6,20,21,22,23,24,25} the distribution is considered to be: skewed the right, skewed the left, not skewed?

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?