Respuesta :
The answer is 12.9, because 1.29 times 10 is 12.9 and if you just add 1.29 10 times it will still give you 12.9
Explanation:
If you multiply $1.29 by 10 = $12.90 <------
^ ^ ^--> (Sum/Total) v
(One dollar and twenty-nine cents) (Ten being what you multiply) v (Twelve Dollars and Ninety Cents)