Answer:
The first option.
Step-by-step explanation:
Answer:
n = 12.89
Step-by-step explanation:
Add 9.02 + 3.87
Answer:
The answer for a different question is 5x
Step-by-step explanation:
DONT CHOOSE THIS. youll get wrong
Answer:
Cost of 45 screwdrivers will be = $900
Step-by-step explanation:
Last year 15 electric screwdrivers cost to the local hardware store = $300
So per screwdriver cost = 
= 
= $20
Now we have to calculate the cost of 45 screw drivers.
Since cost of 1 screwdriver = $20
So cost of 45 screwdrivers = 20×45 = $900
10P4 = 10! / (10-4)! = 10*9*8*7 = 5040
9C4 = 9! / 5! 4! = 9*8*7*6 / 4*3*2*1 = 126