Trekster USA, a tire manufacturer, guarantees its tires against defects for five years or 60,000 miles, whichever comes first. Suppose Trekster USA can expect warranty costs during the five-year period to add up to 3% of sales. Assume that a Trekster USA dealer in Denver, Colorado, made sales of $642,000 during 2021. Trekster USA received cash for 15% of the sales and took notes receivable for the remainder. Payments to satisfy customer warranty claims totaled $18,800 during 2021. Read the requirements. . . . a. What amount of warranty expense will Trekster USA report during 2021? During 2021, Trekster will report warranty expense ofRequirements a. What amount of warranty expense will Trekster USA report during 2021? b. Which accounting principle addresses this situation? c. Does the warranty expense for the year equal the year's cash payments for warranties? d. Explain the relevant accounting principle as it applies to measuring warranty expense