Find the sum. express your answer in simplest form. 4x+6/y^2-9 + 8x-7/y^2-9

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?

5cakes cost 3.50 how much do 7 cakes cost