The mass of a dolphin is 2 × 102 kilograms. The mass of an orca is 1 × 104 kilograms. About how many times as much mass does the orca have than the dolphin?

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

Which expression is equivalent to 5r6141 2r+st6

What is the value of x? enter your answer in the box. photo attached.