54 tacos was sold at lunch. What is six times as many as the number of hotdogs that were sold. How many hotdogs were sold?

Find the volume of the solid generated when the region bounded by y= x and y= 4√x is revolved about the x-axis the volume of the solid is: (type an exact answer cubic units)

The area of a rectangle is 54x^9y^8 square yards. if the length of the rectangle is 6x^3y^4 yards, which expression represents the width of the rectangle in yards

What is always true when two whole numbers are subtracted?