Answer:
18 different 3 topping pizzas are possible
Explanation:
Think of this as numbers:
123 234 345 456 561 612
134 245 356 461 512 623 6 x 3 = 18
145 256 361 412 523 634
or
You can multiply 6 by 3 to find the possible amount of 3-topping pizzas
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