A nutritionist who works for a fitness club helps members by evaluating their diets. As part of her evaluation, she asks members for the number of fat grams and carbohydrate grams that they consumed in a day.
Then, she calculates the number of calories that result from the fat, using the following formula:
calories from fat = fat grams × 9
Next, she calculates the number of calories that result from the carbohydrates, using the following formula:
calories from carbs = carb grams × 4

What will be the total calories from fat and carbohydrates if a person consumed 50 grams of fat and 200 grams of carbohydrates in a day?
a) 450 calories from fat and 800 calories from carbohydrates
b) 450 calories from fat and 400 calories from carbohydrates
c) 500 calories from fat and 800 calories from carbohydrates
d) 500 calories from fat and 400 calories from carbohydrates