Answer:

Step-by-step explanation:
we know that
<u><em>Combinations</em></u> are a way to calculate the total outcomes of an event where order of the outcomes does not matter.
To calculate combinations, we will use the formula

where
n represents the total number of items
r represents the number of items being chosen at a time.
In this problem

substitute

simplify



Answer:
1. g x 5 = b
2. f x 12 = in
3. luis' miles x 12 = fabian's miles
4. input x 1.5 = output
5. monica's weight - 5.6 lbs. = Lisa's weight
6. width x 2.5 = length
Step-by-step explanation: