Hello! Your answer would be 2 ( 35 ) - 5.
Let's look at these parts individually.
"It took Carrie five less minutes than twice the amount of time as Hua."
We know that Hua took 35 minutes. Twice the amount of time as Hua would therefore be 2 * 35 minutes.
"It took Carrie five less minutes than twice the amount of time as Hua."
Five less minutes can be written out with subtraction, and just a - 5, making 2 * 35 - 5.
Therefore, your final answer is 2(35) - 5.
Hope this helps!