Help with 1-4 please

{1) {3pts} Convert 4.3294 x 11]\" to decimal notation. {2] {3pts} Convert .[i[l]12{l? to scientic notation. {3) (3pts each} The model A = 0.18311 + 61895 is used to estimate the life expectancy A of residents of the united States horn 11 years after 1951}. (a) According to this model, what is the life eaqiectancy [or a person horn in 1980'? Round to the nearest year. {h} It a person has a life expectancy of 1"? years, to the nearest year, when was the person born? {4] {4pm} Solve the inequality 84{2;r] 3 2:t. 1luilfrite your answer in interval notation and graph it on a real number line