Use reasoning to lead to the answer of the following question:
In a restaurant, a burger costs $9, and a pizza twice as much. How much would cost one pizza and three burgers?

45
One pizza costs twice as much as the burger, which means 9 * 2 = $18.

Three burgers would cost 9 * 3 = $27.

So one pizza and three burgers would cost in total 18 + 27 = $45.

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So, the final answer is 45