Based on what we know a function to be today, Euler mean an analytic expression "an expression formed from operations such as addition, multiplication, powers, and roots"
<h3>Euler's definition of a function</h3>
According to Euler, a function of a variable quantity is an analytic expression composed in any way whatsoever of the variable quantity and numbers or constant quantities.”
The function is. combination of expression which includes variables and constants using various operations such as roots, power and multiplication.
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Answer:

Step-by-step explanation:
We want to find a common factor for

and

We factor each of them to get;

and

We can observe now that;
The factor common to both expression is

The modeling with mathematical expressions allow to make predictions about the thing being modeled. For example, we can predict if the population of the country will decrease or increase. What velocity has to have the spaceship to get to the other planet. How long it takes travel from on city to another by plane and by car. How many schools should be build during next 10 years.
For this we can do 5.2 cents times 1.5 to determine how much zippy is costing the company per box extra so .052 x 1.5 is roughly 7.8 cents per box. So now 7.8 cents Times 484, .078 x 484 is roughly $37.752 cents or $37.75