Interest Revenue for Held-to-Maturity Securities

On January 1, the company purchased debt securities for cash of $25,585. The securities have a face value of $18,000, and they mature in 15 years. The securities have a stated interest rate of 10%, and interest is paid semiannually, on June 30 and December 31. The prevailing market interest rate on these debt securities is 7% compounded semiannually. The securities were purchased as a held-to-maturity investment.

2. Make the journal entry to record the June 30 receipt of interest. When required, round your answers to the nearest dollar. If an amount box does not require an entry, leave it blank

cash	900
investment in held to maturity securities		x
interest revenue		x

3. Make the journal entry to record the December 31 receipt of interest. When required, round your answers to the nearest dollar. If an amount box does not require an entry, leave it blank.

cash	900
investment in held to maturity securities		x
interest revenue		x

I can not figure out the Xs.

Please show how you got your answer. Thank you!