Jackson Corp. enters into a contract with a customer to build an apartment building for $$750,000.$ The customer hopes to rent

apartments at the beginning of the school year and offers a performance bonus of $$168,000$ to be paid if the building is ready for

rental beginning August $1,2023.$ The bonus is reduced by $$56,000$ each week that completion is delayed. Jackson commonly includes

these completion bonuses in its contracts and, based on prior experience, estimates the following completion outcomes:

$($a$)$