What is the answer to X ≥ 5

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

The solution set for 5v2 – 125 = 0 is

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