Acubic piece of metal measures 7.50cm on each edge. if the metal is nickel, whose density is 8.90 g/cm3, what is the mass of the cube?

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.