1 answer
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At Pete's, a six-topping sundae would cost $4.00 (base price) + $6.00 (6 toppings x $1.00) = $10.00.
At Patti's, a six-topping sundae would cost $5.50 (base price) + $6.00 (6 toppings x $1.00) = $11.50.
Therefore, the correct answer is: $10.00; $11.50