need a short summary of the legal case below. Both links are the same case. plz also state the category of the case, for example, performance of a contract, termination of offer. Thankyou.

https://www.ejcdc.org/enforceability-of-pay-if-paid-clauses-under-nevada-law-apco-construction-inc-v-zitting-brothers-construction-inc-supreme-court-of-nevada-2020-by-hugh-anderson/

https://law.justia.com/cases/nevada/supreme-court/2020/75197.html