Consider the following geometric sequence. 2,6,18,54

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.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Give me the equations of two lines that have the same slope but are not parallel.