Please explain how the value of each entry is obtained

Eyewear Company signs a contract to manufacture a new sunglasses injection mold contract includes installation which costs $20,000 and a 24/7 service contract over the life of the mold valued at $10,000. The press cannot be operated without the installation. Eyewear Company is the only manufacturer that can provide the installation because of its unique nature. 24/7 equipment installed on 10/8/ system for SurfSunglass Co for $1800,000. The t service is commonly available. The system is paid for on 9/30/17, delivered on 10/1/17 and 17. Assuming books are closed monthly, what are journal entries related to revenue recognition at each date? 9/30/17 CAs , 10/8/17 166