There are 72 boys and 90 girls on the math team.
For the next math competition. Mr. Johnson would like to arrange all of the students in equal rows with
only girls or only boys in cach row.
What is the greatest number of students that can be in each row?

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

Aline passes through 3,7 and 6,9 what equation represents the line

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.