Quick math puzzle, help

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Write the expression 7x^3-28xy^2 as the product of 3 factors

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