what are the correct answers?

the second image, those answers are wrong that a different expert provided me.

Amelia Wilson is the owner/manager of the Kansas Inn. Her accountant has suggested that all cash discounts should be taken. Assume the Kansas Inn can borrow short-term funds at an annual interest rate of 8 percent. Required: 1. Determine the effective rate of interest of the following terms of sale: a. 2/10,n/30 b. 3/10,n/60 c. 1/10,n/50 2. Do you agree with the accountant, given the above terms of sale and the borrowing interest rate for short-term loans as stated above? Enter the effective interest rates using two decimal points, no percentage sign. For example if the interest rate is 12.121% you would enter 12.12 1a. 2/10,n/30 1b. 3/10,n/60 1c. 1/10,n/50