Percentage change when a price is £110 is decreased to £98

Paint color preference children adults total 0.6 0.77 liked new paint color disliked new paint color 0.4 0.15 0.23 total 1.0 1.0 1.0 which value for x completes the conditional relative frequency table by column?

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?