Hello!! the answer is 3xy
Answer: $18.15
Step-by-step explanation:
$ 4.50 + $13.65 = total amount due
Answer:
6.6a+6b-7.1
Step-by-step explanation:

Answer:
Have you tried photo math.? It can help you find the answer
Answer:
1320 ways
Step-by-step explanation:
Here we have a situation where 3 ribbons will be awarded to 3 of the 12 contestants. We can use the permutation formula, because the order of awarding the ribbons matters.
The permutation formula is:

n = 12
k = 3
Now that we have our variables, let's plug them into the formula.



So there are 1320 different ways that the contestants will be awarded.