Sal is tiling his entryway. The floor plan is drawn on a unit grid. Each unit length represents 1 foot. Tile costs $1.65 per square foot. How much will Sal pay to tile his entryway? Round your answer to the nearest cent.

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?