arie has $46 in is account and is saving $8.50 each week. Olga has $14 in her savings account and is saving $12.50 each weeks. After how many weeks will arie and olga have the same amount in their accounts

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

How is the number of vertices for a prism related to the name of the prism

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.