Need to check my work, if you could please solve these questions and show me how you did it. Thank you.

Biochemical Corporation requires $630,000 in financing over the next three years. The firm can borrow the funds for three years at 11.80 percent interest per year. The CEO decides to do a forecast and predicts that if she utilizes short-term financing instead, she will pay 8.50 percent interest in the first year, 12.90 percent interest in the second year, and 9.75 percent interest in the third year. Assume interest is paid in full at the end of each year.

1. Determine the total interest cost under each plan.

1. Which plan is less costly?

1. multiple choice

Long-term fixed-rate plan

Short-term variable-rate plan