Answer this question:What is the difference between 9 < x and 9 = x? Explain.

Sal is tiling his entryway. the floor plan is drawn on a unit grid. each unit length represents 1 foot. tile costs $1.35 per square foot. how much will sal pay to tile his entryway? round your answer to the nearest cent.

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2