Answer:
A multiple regression equation for this model can be expressed as:

Step-by-step explanation:
To model this problem as a multiple regression equation, we need to define which are the independent and dependent variables.
The dependent variable is the one which we want to predict for any set of independent variables values. This is the case of the driver's automotive insurance monthly premiums.
The driver's automotive insurance monthly premiums is the dependent variable "y".
The independent variables are the ones that explain the dependent variable variation. In this case there are: number of miles driven per week (x1); the age of the car, in years (x2); and the number of accidents in which the driver has been involved in the past 5 years (x3).
Then, a multiple regression equation for this model can be expressed as:

30/100.
To get to this, you need to change the denominator to 100. 10 x 10 = 100 so whatever you do to the denominator, you do to the numerator. 3 x 10 = 30 so your answer would be 30/100.
You can use proportions in all of these as I explained in another one of your questions. I'll post the answers if you still want them.
Answer:
x < -7
Step-by-step explanation: