18. As of December 31, 2018, Chippewa Company has $26,440 cash in its checking account, as well as several other items listed below: Bank credit card slips signed by customers $3,600 Money market fund balance $ 25,000 Investment in U.S. Treasury bills, mature within 90 days $ 80,000 Checks received from customers, but not yet deposited in the bank $ 4,600 Investment in ATT 7% bonds, maturing June 2022 $ 70,000 What amount should be shown in Chippewa's December 31, 2018, balance sheet as "Cash and cash equivalents"? (1 Point) $139,640 $209,640 $59,640 $30,040 Window