Given
Quadratic model
Find
number of salespeople maximizes the company's profits
Explanation
as we see from the curve that maximum monthly profit is between 35 to 40 ,
so , it is approximately near to 37 sales people.
Final Answer
Hence , the best option is B
10% and 16% ? I think I haven't done this in three years!
Cost of installation fee is $120.
Step-by-step explanation:
Let,
Monthly fee = x
Installation fee = y
According to given statement;
6x+y=594 Eqn 1
11x+y=989 Eqn 2
Subtracting Eqn 1 from Eqn 2

Putting x=79 in Eqn 1

Cost of installation fee is $120.
Keywords: Linear equations, subtraction
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