Sally has been measuring the tree in her yard for a science project. the tree has grown 1/2 of an inch each month and gotten a total of 2 inches taller. how many months has sally been measuring this tree?

What is the measure of angle tvu shown in the diagram below

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

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