Problem: Zoe carries on commercial activities and registered for GST on car basis. Made supplies for which she received $71,500 in cash, acquired taxable supplies to use in carrying on commercial activities and paid $36,300 for those acquisitions (tax invoices received). Acquired supplies it use in carrying on commercial activities from an entity not register and paid $2,200 for those acquisitions. Assuming Zoe only rents premises what is net GST payable or refundable