Reducir los siguientes polinomios: 7a - 9b +6a - 4b = a + b – c – b – c + 2c – a = 5x – 11y – 9 + 20x – 1 – y = – 6m + 8n +5 – m – n – 6m – 11 = –a + b + 2b – 2c + 3a + 2c – 3b = – 81x + 19y – 30z + 6y + 80x + x – 25y 15a2 - 6ab - 8a2 +20 –5ab –31 + a2 -ab = –3a +4b – 6a + 81b –114b + 31a –a –b =

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

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay