Acone has a height of 8 inches in diameter of 6.4 inches what is the volume of the cone?

plz show work

Can some one me with these questions

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

Solve for x. −3/4(x+2)=6 enter your answer in the box