Answer:
$25 off any toy chest
Explanation:
The original price of the toy = $50
First, we determine the sales price using the two coupons below:
Coupon 1: Take 40% off any purchase

Coupon 2: $25 off any toy chest

The sales price for the second coupon is lower.
Thus, Chad should use the coupon that offers "$25 off any toy chest".