A kilogram of pork costs $6 while a kilogram of chicken costs $2 less. How much will a 3-kilogram of chicken and a kilogram of pork cost?
A kilogram of chicken costs $6 - $2 = $<T>subtract(6, 2)=4
Three kilograms of chicken cost $4 x 3 = $<T>multiply(4, 3)=12
So, a 3-kilogram of chicken and a kilogram of pork cost $12 + $6 = $18.
