What is 3.3 * 10^5 + 44,000 in scientific notation?

(3.3 times 10 to the fifth power plus 44,000)

How do i do this? i don’t understand

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4