To determine how much you will save when a toy is discounted by 35%, you can calculate 35% of the original price of $49.
First, find 35% of $49: \[ \text{Savings} = 0.35 \times 49 \]
Calculating that: \[ 0.35 \times 49 = 17.15 \]
So, if you buy the remote-control helicopter originally priced at $49, you will save $17.15.
The correct answer is $17.15.