Answer:
15.6
Step-by-step explanation:
15+32=47
47/3=15.6
since the - is there
it will be -15.6
Answer: 
Step-by-step explanation:
R is the event of getting a red jelly bean. 22 out of the 150 jelly beans are red. That means it is a
chance of getting a red jelly bean.
Simplified that is 
For the new expectation, 3 drivers and 2 vans are needed.
To determine, for the new expectation, how many drivers and vans do you need, the following calculation must be performed:
- 8500 x 1.5 = 12750
- 5000 x 3 = 15000
Therefore, for the new expectation, 3 drivers and 2 vans are needed.
Learn more about maths in brainly.com/question/26173296
X = number of servers
y = number of guests

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There must be at least 1 server for every 12 tables: