Please answer the following question by reasoning step-by-step.
Lightning McQueen, the race car, cost 140000$. Mater only cost 10 percent of that, and Sally McQueen cost triple what Mater costs. How much does Sally McQueen cost?

42000
Mater:140000(.

10) = 14000$.

Sally:14000(3) = 42000$.

.

So, the answer is 42000