Rosa can top her hotdog with four optional condiments: ketchup, mustard, hot sauce, and relish. How many different ways can she top her hotdog?

notice that word different that means unique all

At first he have 4 choice either one rosa can choose

at the second he has 3 choice cause remember word unique. choice with no repetation

so will the solutions be like 4 unique condiments times 3 unique condiments times 2â€¦ so on ??? because the order the come in really does not matter right. Can you please help me comprehend?

Basically Rosa has 4 condiments, also it says that its OPTIONAL.

Hence, for ketchup she has in total two option - 1.she will take it 2. she will not take it same goes for other three condimentsâ€¦ therefore, 2 x 2 x 2 x 2 = 16.

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thank you very much @shrea . I didnâ€™t consider the optional part.