The value of my hundred digit is 300, the value of my tens digit is zero. The value of my ones digit is an even number greater than seven

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.

Are the corresponding angles congruent? explain why or why not.

Need plz been trying to do it for a long time and still haven’t succeeded