i need help with this program. i have tried applying the formula that was given to me into the code but when i try use the (pow) function an error comes out.
Write a program that calculates and displays a person s body mass index (BMI). The
BMI is often used to determine whether a person with a sedentary lifestyle is overweight
or underweight for his or her height. A person s BMI is calculated with the following
formula:
BMI = weight × 703 / height2
where weight is measured in pounds and height is measured in inches. The program
should display a message indicating whether the person has optimal weight, is underweight,
or is overweight. A sedentary person s weight is considered to be optimal if his
or her BMI is between 18.5 and 25. If the BMI is less than 18.5, the person is considered
to be underweight. If the BMI value is greater than 25, the person is considered
to be overweight.
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this is all have done so far..
int weight, height, BMI;
cout << "what is your weight and height? put a space in between answers."
<< endl;
cin >> weight >> height;
BMI = (weight * 703)/pow(height, 2);
 