Can someone me how to solve this question:
a fisheye lens has a minimum focus range of 13.5 centimeters. if 1 centimeter is equal in
length to about 0.39 inch, what is the minimum focus range of the lens in feet?

41/17 as a decimal rounded to the nearest hundredth

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

If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?