Answer:
4
Step-by-step explanation:
There are 4 ways to ignore one of the points. The other 3 can be connected to form a triangle.
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More formally, the number of ways that 4 items can be chosen 3 at a time is given by ...
... C(4, 3) = 4!/(3!(4-3)!) = 4/1 = 4
There are 3 shapes present.
Triangle - 2
Circle - 4
Square - 2
Ratio of triangles to cirles: 2 triangles to 4 circles ⇒ 2/4
2/4 simplified to 1/2.
Answer of Part A is 243 Lunches
Answer of Part B is 850.50$
Could I have the choices?
The unknown number would be 11
738 + 164 = 902
902 / 82 = 11
Ans: 11