Balance sheet for september for blue spruce veterinary clinic after finishing august with $11000 in cash, $3700 in Account receivable, $600 in supplies, $6000 in equipment , 5600 in accounts payable, 14900 in common stock, 800 retained earnings

At a pizza shop 70% of the customers order a pizza 25% of the customers order a salad and 15% of the customers order both a pizza and a salad if s customer is chosen at random what is the probability that he or she orders either a pizza or a salad