Convert 9 feet and 4 1/2 inches to inches

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

Answer pls man im trying to get out of summer school

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.