HELPP PLS WAS DUE A LONG TIME AGO How do you get rid of distracting backgrounds?

FOR PHOTOGRAPHY

BAD ANSWERS WILL BE DELETED!!

WOrth alot of points

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.

Put the equation in slope intercept form by solving for y

Write the equations in logarithmic form 9^4=6,561