What is the percent change from $65 to $78

What is (28 + 7 + 6 + 3) x 1/2 show your work

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

Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?