Last week a patient weighed 218 lb. he now weighs 98.1 kg how many ounces did he lose

Weight of the patient last week = 218 pounds
We already know that
1 kg = 0.453592 pounds
Then
218 pounds = 0.453592 * 218 kg
                    = 98.8831 kg
                    = 98.88 kg
Weight of the patient now = 98.10 kg
Then
The amount of weight lost by the patient = (98.88 - 98.10) kg
                                                                 = 0.78 kg
So the patient loses 0.78 kg within a week. I hope the procedure is clear enough for you to understand. Only conversion part is important to take note while getting to the solution.

For the first question the answer is a, for the second c, for the third d, for the 4th b, for the 5th a

Need the graph to answer this.