Acertain number was increased 5 times then decreased by 3 then halved. the result was 0.3 less than the original number. what was the original number?

Which rational number could be graphed between -4 and -5

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

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