examine all the scaled copies and more closely, specifically the lengths of each part of the letter F. How do they compare to the original what do you notice? please help

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

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.

The function show two sisters' savings account and the rate at which they plan to deposit money