Find the variables. WORTH 50 POINTS

What would the rule be for the reflection of y=-3

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

What is the sum of the first 8 terms of the geometric series