Answer:
nCr.
Step-by-step explanation:
That would be nCr,
For example
5C2 = 5! / 2! (5-2)!
= 5! / 2!3!
Different collections in total? Or like pairs of 2 how many?
Answer:
Commutative Property for Multiplication
Answer:
Hello
Step-by-step explanation:
what are the prices? I guess hours are on the x axis and prices on the y?
Answer: 81 mm^2
Step-by-step explanation: All the sides are the same length and area is just length * width so 9*9=81. You're welcome
