The sale price of every item in the store is 85% of its usual price . the usual price of a soccer balll is $24.80, what is its sale price

If 1/2 is half of 1, what is 1/2 of 2,3, and 4?

In which of the situations can information about tyler be represented by the expression r+3 when r represents information about ray? check all that apply.

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.