Answer:
Option B
Step-by-step explanation:
Here we have to apply " combination and permutation. " It is given that the drama club had to choose three booths from a selection of 9, considering the possible ways to choose so. This is a perfect example of combination. In nCr, n corresponds to 9, respectively r corresponds to 3.

Hope that helps!
I believe it would be 4
This is because when divided by 3, 3x+12y=3 turns into x+4y=3
Multiply each dimension by 35:-
17*35 = 595 cm
18*35 = 630 cm
19.7 * 35 = 689.5 cm
in meters the dimensions are L = 6.895 m, W = 6.3 m and H = 5.95 m
Simplify step-by-step.
9m−7m+2m
=9m+−7m+2m
Combine Like Terms:
=9m+−7m+2m
=(9m+−7m+2m)
=4m