Answer:
Step-by-step explanation:
We need to find the value of 
.
C stands for combination.
The formula of combination is as follows :
Here,
n = 19 and r = 1
So,
So, the value of is 19.
Answer:
V = 214.32
Step-by-step explanation:
Remark
You have to be a little careful with this question. The temptation is just to take the difference of the heights. That is not correct. The difference has to be multiplied by the base to get the volume.
Formula
V = (h1 - h2)* Base
Givens
h1 = 32.9
h2 = 29.1
Base = 56.4
Solution
V = 56.4 ( 32.9 - 29.2)
V = 56.4 * 3.8
V = 214.32
I think 8.0 is the answer
11.25 - 2.75 = 8.50
174 - 72 = 102
102 / 8.50 = 12
They bought 12 tickets
