Question 165399
A= 630+.14S   B=1260+.07S     so if you want A to be greater than write the equation as an inequality like this 630+.14>1260+.07S  and solve for S  subtract .07S and 630 from both sides and you end up with .07S>630  so S>9000... so anything above $9000 dollars in sales and company A's offer will be better.