Solve the inequality and graph the solutions on a number line

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

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

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?