Smith family had dinner at the restaurant. The cost of their meals was $45. They wanted to leave the waiter a 10% tip. They had a $50 bill. How much change would they receive after paying for the food and leaving the tip?

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0.50

Step-by-step explanation: the tip was 4.50 (10% of 45) and so minus 50 and then minus 40 (50-45-4.50=0.50)

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answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.