Evaluate 7C3
OA) 25
O B) 45
OC) 35
OD) 20

C) 35

Step-by-step explanation:

C=35

Step-by-step explanation:

⁷C₃

These is combination

using the rule it states that

ⁿCₐ= n!/(n-a)!a!

so therefore ⁷C₃= 7!/(7-3)!3! = 7!/4!3!=7x6x5x4x3x2x1/{(4x3x2x1)x(3x2x1)}

4x3x2x1 cancels itself as it appears up and down

7x6x5/6

6 cancels each itself as it appears up and down

7x5 = 35

b

step-by-step explanation:

the word superfluous means unnecessary

2160ft3

step-by-step explanation: