The weights of Christine's two cats are 7 and 10 pounds. What is her dog's weight if its weight is twice the sum of her two cats' weights?
The sum of the weights of Christine's two cats is 7 + 10 = <T>add(7, 10)=17 pounds.
Christine's dog weighs 17 x 2 = <T>multiply(17, 2)=34 pounds.
