a blue whale is the largest mammal known to have ever existed. it is 380,000 pounds. how heavy is this in tons? one ton = 2000 pounds

List the sides of δrst in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

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