The geometric sequence an = 125(1/5)n-1 represents the sales of a specific product at a store, where n is the number of years after its release. What is the sum of the first 6 terms?

Phillip had some bricks. he stacked them in 6 equal piles. which expression shows the number of bricks phillip put in each pile? let the variable m stand for the unknown number of bricks. m + 6 m÷6    m−6    6m

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)

Could someone me with this, ? : )