Final answer:
To calculate the total number of days the medication should be given to the dog, multiply the dosage per day by the number of tablets and divide the total dosage by the dosage per day to get the number of days. Therefore, the owner should give the dog the medication for a total of 20 days.
Step-by-step explanation:
To calculate the total number of days the medication should be given to the dog, we first need to determine the total dosage prescribed. The medication is prescribed at a dosage of 2.5 mg twice a day, which means the dog receives 2.5 mg in the morning and 2.5 mg in the evening. Multiply the dosage per day (2.5 mg) by the number of days (20 tablets) to get the total dosage: 2.5 mg/day x 20 tablets = 50 mg.
Next, we need to calculate the number of days the 50 mg of medication should last. Since the dog receives 2.5 mg twice a day, divide the total dosage (50 mg) by the dosage per day (2.5 mg) to get the number of days: 50 mg / 2.5 mg/day = 20 days.
Therefore, the owner should give the dog the medication for a total of 20 days.