Answer:
There are 252 possible outcomes.
Step-by-step explanation:
For each economic course, the student can select nine mathematic courses.
For each mathematic couse, the student can select four computer courses.
There are 7 economic courses.
So in all, there are 9*4*7 = 252 possible outcomes, that is, the number of different ways which the student can select his courses.
20:1,2,4,5,10,20
32:1,2,4,8,16,32
and the greater common factor is 4
Answer:
3
Step-by-step explanation:
The answer is f^-1(x)=x/3-14/3
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