There is 48.5 grams of fat in the cheeseburger. We know 500= amount of protein + amount of fat which translate to 500= p x 7 + f x 9 where p = protein f= far and 7 and 9 are the calories for protein and fat. We know there are 9 grams of protein so we can add that in the equation. 500= 9 x 7 + f x 9. Which simplifies to 500= 63 + f x 9. We know the calories of protein in the cheeseburger is 63 so we subtract that from the total amount of calories. 500-63= 437. 437 is the total amount of calories in fat. To figure out grams of fat you continue. 437=f x 9. Then you divide 9 on both sides where you get 48.5=f where f is the grams of fat. There are 48.5 grams of fat in the cheeseburger.
If the number to the right to the number you are rounding higher than five add one to the number on the left all the numbers behind the eight turn into zeros the answer is 900,000