After receiving some money for her birthday from her aunt, Emma spent $6 of the money at the movie theater. If that was 12% of her birthday money, then how much did her aunt give her?

What point is the projection of q on a) r b) s c) t

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.

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.