Answer:
D
Step-by-step explanation:
Answer:
C. 1 centimeter = 30 meters

<span>The center is x = 1, y = -1.
The radius is 2. </span>
If 30% of his collection is 12 cars, then we can use the fraction
30/12=100/x
x=40
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!