10P4 = 10! / (10-4)! = 10*9*8*7 = 5040
9C4 = 9! / 5! 4! = 9*8*7*6 / 4*3*2*1 = 126
Answer:
Sarah's Store
Step-by-step explanation:
None of the pairs will deliver (g×f)(a). If you intend (g∘f)(a), then ...
... selection 3 is appropriate.
Answer:
B
Step-by-step explanation:
A number increased by 7 means, 7 was added to the number and the result is 15