The Burji khalifa is 2,716 tall and 160 floors. The J&P Building Company's skyscraper will be 15% shorter than the Burj Khalifa. Only using multiplication, determine the height of the new building, in feet.

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

Draw a scaled copy of the circle using a scale factor of 2

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655