Answer:
parenthesis
Step-by-step explanation:
Answer:
Two other algebraic expressions based on this situation are:


Step-by-step explanation:
Let m represent Meg's age.
Jill is 2 years younger than Meg.
Let J represents Jill's age
Jill's age 
Beth is half as old as Meg
Let B represents Beth's age
Beth's age
So, two other algebraic expressions based on this situation are:


Answer:

Step-by-step explanation:




Answer:
2.35 calls
Step-by-step explanation:
The presented scenario can be modeled by a Poisson distribution with an average number of calls (μ) of 5.5 during the noon hour on Mondays.
Therefore, the standard deviation for the number of calls received, X, is given by:

The standard deviation of X is 2.35 calls.