Pls help me I will make u a brainest How many multisets of three positive integers have a mean of 9, a median of 11 and no mode? A multiset allows multiple instances for each of its elements. For example {1,2,2} and {2,1,2} are the same multiset.
Reminders:

• The Mean is equivalent to the average.
• The Median is the middle value when values are sorted by size.
• The Mode is the most often occurring value and is not set if no value is repeated.
1
20
6
27
16
11
4

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.