How do I do this?need help

In which of the situations can information about tyler be represented by the expression r+3 when r represents information about ray? check all that apply.

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x

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