6. Cornelius purchased a total of 50 ride and game tickets at the festival and spent $29. If ride tickets cost $0.75 each and game tickets cost $0.50 each, how many ride tickets did Levi purchase? Variables: Solve: Sysiem: Solution:

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

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.

What is the result of the following division?