F(x)=70x¾ x= kilograms. How many calories per day does a person who weights 80 kilograms (176 lbs.) need to maintain life? 70(80)¾ =

f(x)=70x¾ x= kilograms. How many calories per day does a person who weights 80 kilograms (176 lbs.) need to maintain life? 70(80)¾ =