How do you write this is word form?

Write the expression as a single natural logarithm. 2 in a - 4 in y

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.

Jim had 15 minutes to do 5 laps around his school what would his time be