(b) Fill in the following blank with a whole number: Air is approximately__
times as heavy as helium is.
7. Suppose that for every 8076 tentacles there are 673 aliens.
(a) Complete the following calculation that computes the total number of aliens given 27,600 tentacles. Show
how units cancel. Make sure that you have units in your final answer.
673 aliens
(27,600 tentacles).
8076 tentacles
(b) Use a conversion factor to compute the number of tentacles for 117 aliens. Show your work as in part (a)
above. Make sure that you have units in your final answer.