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- 126
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6
Answer:
The questions and problem can be chosen in 1260 ways.
Step-by-step explanation:
Given that, a physics exam consists of 6 open-ended problem and 9 multiple choice questions.
The order of choosing does not matter.
So,we use combination to find ways.
The ways to choose 6 multiple choice from 9 is= 

=84
The ways to 2 open-ended question from 6 is= 

=15
Since pick 6 multiple choice out of 9 and 2 open-ended question out of 6 both are independent we have multiply both to find required ways.
Total number of ways is =(84×15)
=1260.
Answer:
20x + 22
Step-by-step explanation:
34- 4x + 12x -12 +12x
step 1: 34 - 12 = 22
now you have left: -4x + 12x +12x
step 2: 12x +12x = 24x
step 3: 24x - 4x = 20x
Now you will combine the two answers you got: 20x +22
Hope this helps :)
Answer: 125 yards?
Step-by-step explanation: