Which expression represents the product of x^3 + 2x -1 and x^4-x^3 +3

The price of a coat increased from $78 to $92. what is the price increase percentage?

Which linear inequality is represented by the graph? !

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.