Answer: $53.95
Step-by-step explanation:
Given:
pounds
pounds
n= 50
Two tailed critical z-value for 90% confidence level = 1.645
Let x be the total amount of food that a cafeteria should have on hand to be 90 percent confident that it will not run out of food .
z-score =

Then, 

Foe 50 students, total amount of food = 1.079 x 50 = $53.95
hence, the cafeteria should have food of amount $53.95 so that it is be 90 percent confident that it will not run out of food.
It is is y = -3
Good luck!!
Answer:
Step-by-step explanation:

The real estate agent has a commission rate of 33.3%
if youy divide 240000 by 7200 then you would get 33.33333333
which would mean she has a (1/3) commission rate. hope this helps you out!