Answer:
the amount of the interest expense is $20,000
Explanation:
The computation of the amount of the interest expense is shown below;
= Interest expense × total tax book value ÷ (total tax book of U.S + total tax book value of its foreign production assets)
= $100,000 × $5,000,000 ÷ ($5,000,000 + $20,000,000)
= $100,000 × $5,000,000 ÷ $25,000,000
= $20,000
hence, the amount of the interest expense is $20,000