Grape juice comes in a 64 oz bottle. apple juice comes in a 80 ounce bottle. both juices will be poured into cups of equal size so that no juice remains in either bottle. how many ounces is the largest possible cup that can be used for both juices?

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

Can someone check if i did this correct. it’s number 4 if you’re wondering.

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.