A partial adjusted trial balance of Crane Company at January 31, 2021, shows the following. Credit CRANE COMPANY Adjusted Trial Balance January 31, 2021 Debit Supplies $2,900 Prepaid Insurance 10,500 Salaries and Wages Payable Unearned Revenue Supplies Expense 4,300 Insurance Expense 1,750 Salaries and Wages Expense 7,800 Service Revenue $3,400 4,200 8,600 Answer the following questions, assuming the year begins January 1. (a) If the amount in Supplies Expense is the January 31 adjusting entry, and $2,700 of supplies was purchased in January, what was the balance in Supplies on January 1? Beginning balance of supplies $