Matt worked for 3 3/4 hours painting bird houses. it takes him 1/2 hour to paint one birdhouse. how many bird houses did Matt finish painting?

Need solving this second acceleration problem.

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.

When rolling 26 sided number cube what are the chances some of the role will be seven