The meaning of the concept circular flow

Carver company produces a product which sells for $30. variable manufacturing costs are $15 per unit. fixed manufacturing costs are $5 per unit based on the current level of activity, and fixed selling and administrative costs are $4 per unit. a selling commission of 10% of the selling price is paid on each unit sold. the contribution margin per unit is:

Darlene has a balance of 3980 on a credit card with an apr of 22.8% paying off her balance and which of these lengths of time will result in her paying the least amount of interest?

Acompany has $80,000 in outstanding accounts receivable and it uses the allowance method to account for uncollectible accounts. experience suggests that 6% of outstanding receivables are uncollectible. the current credit balance (before adjustments) in the allowance for doubtful accounts is $1,200. the journal entry to record the adjustment to the allowance account includes a debit to bad debts expense for $4,800. true or false