Please new one needed help

What is the factored form of the following expressions? d^2 – 13d + 36

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample

Order 1100000, 314000, 965000, 1890000, from least to greatest.