A boxer weighs 97 kg at 4 months from a fight. He is on a diet that allows him to lose 3 kg per month until the day of the fight. How much will he weigh on the day of the fight?
In 4 months, he will lose 3 x 4 = <T>multiply(3, 4)=12 kilograms.
So his weight will be 97 – 12 = <T>subtract(97, 12)=85 kilograms.
